The 13 Best Niacinamide Serums We Tested for Smoother, More Radiant Skin

Mar. 15, 2025

In This ArticleView AllIn This ArticleOur Top PicksReviewsAdd to CartWhat to KnowBehind the ScenesFAQWhy Trust PEOPLE?What is PEOPLE Tested?

In This ArticleView All

In This Article

View All

Our Top Picks

Reviews

Add to Cart

What to Know

Behind the Scenes

FAQ

Why Trust PEOPLE?

What is PEOPLE Tested?

Photo:People / Kristin Kempa

People / Kristin Kempa

There’s no shortcut to healthy, clear skin, but niacinamide is a tried-and-true workhorse that can turbocharge your skincare routine.What is Niacinamide?Niacinamide is a form of vitamin B3 and a versatile antioxidant, according to board-certified dermatologistDr. Trisha Khanna. Available in concentrations from 2 to 20 percent, it’s beneficial for almost all skin types and boasts anti-inflammatory properties that provide a host of benefits.“A safe and effective niacinamide serum can help lessen the depth of wrinkles, brighten skin texture, and help cultivate hydration within the skin," says celebrity estheticianNerida Joy, who has counted Jennifer Garner as a client since 1999.With this in mind, we tested dozens of niacinamide serums on different skin types to uncover which products provided more luminous, hydrated complexions over the course of eight weeks.Our Top PicksBest Overall:Westman Atelier Skin Activator Serum with Hyaluronic Acid + Niacinamide at Amazon$189Jump to ReviewBest Budget:The Ordinary Niacinamide 10% + Zinc 1% at Amazon$6Jump to ReviewBest Firming:Alpyn Beauty Firming Serum at Amazon$58Jump to ReviewBest for Acne Scars:SALECosrx The Niacinamide 15 Serum at Amazon$25$20Jump to ReviewBest Investment:Dr. Barbara Sturm Niacinamide Serum at Amazon$160Jump to ReviewBest for Radiance:Drunk Elephant B-Goldi Bright Drops at Amazon$38Jump to ReviewBest for Beginners:First Aid Beauty Niacinamide Dark Spot Serum at Amazon$42Jump to ReviewBest for Sensitive Skin:Glossier Super Pure Serum with Niacinamide + Zinc at Amazon$38Jump to ReviewBest for Instant Glow:Glow Recipe Watermelon Glow Niacinamide Dew Drops at Amazon$35Jump to ReviewBest Drugstore:SALENeutrogena Hydro Boost + Niacinamide Serum at Amazon$31$19Jump to Review

There’s no shortcut to healthy, clear skin, but niacinamide is a tried-and-true workhorse that can turbocharge your skincare routine.

What is Niacinamide?Niacinamide is a form of vitamin B3 and a versatile antioxidant, according to board-certified dermatologistDr. Trisha Khanna. Available in concentrations from 2 to 20 percent, it’s beneficial for almost all skin types and boasts anti-inflammatory properties that provide a host of benefits.

What is Niacinamide?

Niacinamide is a form of vitamin B3 and a versatile antioxidant, according to board-certified dermatologistDr. Trisha Khanna. Available in concentrations from 2 to 20 percent, it’s beneficial for almost all skin types and boasts anti-inflammatory properties that provide a host of benefits.

“A safe and effective niacinamide serum can help lessen the depth of wrinkles, brighten skin texture, and help cultivate hydration within the skin," says celebrity estheticianNerida Joy, who has counted Jennifer Garner as a client since 1999.

With this in mind, we tested dozens of niacinamide serums on different skin types to uncover which products provided more luminous, hydrated complexions over the course of eight weeks.

Our Top PicksBest Overall:Westman Atelier Skin Activator Serum with Hyaluronic Acid + Niacinamide at Amazon$189Jump to ReviewBest Budget:The Ordinary Niacinamide 10% + Zinc 1% at Amazon$6Jump to ReviewBest Firming:Alpyn Beauty Firming Serum at Amazon$58Jump to ReviewBest for Acne Scars:SALECosrx The Niacinamide 15 Serum at Amazon$25$20Jump to ReviewBest Investment:Dr. Barbara Sturm Niacinamide Serum at Amazon$160Jump to ReviewBest for Radiance:Drunk Elephant B-Goldi Bright Drops at Amazon$38Jump to ReviewBest for Beginners:First Aid Beauty Niacinamide Dark Spot Serum at Amazon$42Jump to ReviewBest for Sensitive Skin:Glossier Super Pure Serum with Niacinamide + Zinc at Amazon$38Jump to ReviewBest for Instant Glow:Glow Recipe Watermelon Glow Niacinamide Dew Drops at Amazon$35Jump to ReviewBest Drugstore:SALENeutrogena Hydro Boost + Niacinamide Serum at Amazon$31$19Jump to Review

Best Overall:Westman Atelier Skin Activator Serum with Hyaluronic Acid + Niacinamide at Amazon$189Jump to ReviewBest Budget:The Ordinary Niacinamide 10% + Zinc 1% at Amazon$6Jump to ReviewBest Firming:Alpyn Beauty Firming Serum at Amazon$58Jump to ReviewBest for Acne Scars:SALECosrx The Niacinamide 15 Serum at Amazon$25$20Jump to ReviewBest Investment:Dr. Barbara Sturm Niacinamide Serum at Amazon$160Jump to ReviewBest for Radiance:Drunk Elephant B-Goldi Bright Drops at Amazon$38Jump to ReviewBest for Beginners:First Aid Beauty Niacinamide Dark Spot Serum at Amazon$42Jump to ReviewBest for Sensitive Skin:Glossier Super Pure Serum with Niacinamide + Zinc at Amazon$38Jump to ReviewBest for Instant Glow:Glow Recipe Watermelon Glow Niacinamide Dew Drops at Amazon$35Jump to ReviewBest Drugstore:SALENeutrogena Hydro Boost + Niacinamide Serum at Amazon$31$19Jump to Review

Best Overall:Westman Atelier Skin Activator Serum with Hyaluronic Acid + Niacinamide at Amazon$189Jump to Review

Best Overall:Westman Atelier Skin Activator Serum with Hyaluronic Acid + Niacinamide at Amazon$189

Best Overall:

Best Budget:The Ordinary Niacinamide 10% + Zinc 1% at Amazon$6Jump to Review

Best Budget:The Ordinary Niacinamide 10% + Zinc 1% at Amazon$6

Best Budget:

Best Firming:Alpyn Beauty Firming Serum at Amazon$58Jump to Review

Best Firming:Alpyn Beauty Firming Serum at Amazon$58

Best Firming:

Best for Acne Scars:SALECosrx The Niacinamide 15 Serum at Amazon$25$20Jump to Review

Best for Acne Scars:SALECosrx The Niacinamide 15 Serum at Amazon$25$20

Best for Acne Scars:

SALE

Best Investment:Dr. Barbara Sturm Niacinamide Serum at Amazon$160Jump to Review

Best Investment:Dr. Barbara Sturm Niacinamide Serum at Amazon$160

Best Investment:

Best for Radiance:Drunk Elephant B-Goldi Bright Drops at Amazon$38Jump to Review

Best for Radiance:Drunk Elephant B-Goldi Bright Drops at Amazon$38

Best for Radiance:

Best for Beginners:First Aid Beauty Niacinamide Dark Spot Serum at Amazon$42Jump to Review

Best for Beginners:First Aid Beauty Niacinamide Dark Spot Serum at Amazon$42

Best for Beginners:

Best for Sensitive Skin:Glossier Super Pure Serum with Niacinamide + Zinc at Amazon$38Jump to Review

Best for Sensitive Skin:Glossier Super Pure Serum with Niacinamide + Zinc at Amazon$38

Best for Sensitive Skin:

Best for Instant Glow:Glow Recipe Watermelon Glow Niacinamide Dew Drops at Amazon$35Jump to Review

Best for Instant Glow:Glow Recipe Watermelon Glow Niacinamide Dew Drops at Amazon$35

Best for Instant Glow:

Best Drugstore:SALENeutrogena Hydro Boost + Niacinamide Serum at Amazon$31$19Jump to Review

Best Drugstore:SALENeutrogena Hydro Boost + Niacinamide Serum at Amazon$31$19

Best Drugstore:

Best OverallWestman Atelier Skin Activator Serum with Hyaluronic Acid + NiacinamidePHOTO: Westman Atelier$189 at Amazon$125 at Nordstrom$125 at SephoraStar QualitiesBrighter and more moisturized skin after first useHydrated, firmed, smoothed, and evened out skin tone over timeQuick-absorbingRed FlagsRelatively expensiveThis ultra-potent serum earned top marks in our testing thanks to its gentle yet effective formula which had both immediate and lasting impact on our tester’s skin.Beyond niacinamide, it’s formulated withplumping hyaluronic acid, firming peptides, radiance-boosting fermented algae, and smoothing adenosine. This combination left skin feeling brighter, tighter, and smooth to the touch. We loved that it absorbed readily into skin, easily layering beneath our go-to moisturizer.Star Ingredients:Hyaluronic acid, niacinamide, peptides, noni fruit, fermented algae, adenosine, L-arginine, EGCG, probiotics, prickly pear cactus extract, L-glutamine, ceramidesAdd to CartFor a truly indulgent self-care moment, splurge on theSkin Activator Rollerballwhich comes with two Skin Activator serum refills and an applicator that our tester loved. Cool to the touch and easy to clean, the rollerball helped depuff and soothe our tester’s skin.People / Joie Probst

Best OverallWestman Atelier Skin Activator Serum with Hyaluronic Acid + NiacinamidePHOTO: Westman Atelier$189 at Amazon$125 at Nordstrom$125 at Sephora

Best OverallWestman Atelier Skin Activator Serum with Hyaluronic Acid + Niacinamide

Best Overall

Westman Atelier Skin Activator Serum with Hyaluronic Acid + Niacinamide

PHOTO: Westman Atelier

$189 at Amazon$125 at Nordstrom$125 at Sephora

Star QualitiesBrighter and more moisturized skin after first useHydrated, firmed, smoothed, and evened out skin tone over timeQuick-absorbingRed FlagsRelatively expensive

Star QualitiesBrighter and more moisturized skin after first useHydrated, firmed, smoothed, and evened out skin tone over timeQuick-absorbing

Brighter and more moisturized skin after first use

Hydrated, firmed, smoothed, and evened out skin tone over time

Quick-absorbing

Red FlagsRelatively expensive

Relatively expensive

This ultra-potent serum earned top marks in our testing thanks to its gentle yet effective formula which had both immediate and lasting impact on our tester’s skin.

Beyond niacinamide, it’s formulated withplumping hyaluronic acid, firming peptides, radiance-boosting fermented algae, and smoothing adenosine. This combination left skin feeling brighter, tighter, and smooth to the touch. We loved that it absorbed readily into skin, easily layering beneath our go-to moisturizer.

Star Ingredients:Hyaluronic acid, niacinamide, peptides, noni fruit, fermented algae, adenosine, L-arginine, EGCG, probiotics, prickly pear cactus extract, L-glutamine, ceramides

Add to CartFor a truly indulgent self-care moment, splurge on theSkin Activator Rollerballwhich comes with two Skin Activator serum refills and an applicator that our tester loved. Cool to the touch and easy to clean, the rollerball helped depuff and soothe our tester’s skin.

For a truly indulgent self-care moment, splurge on theSkin Activator Rollerballwhich comes with two Skin Activator serum refills and an applicator that our tester loved. Cool to the touch and easy to clean, the rollerball helped depuff and soothe our tester’s skin.

People / Joie Probst

Best BudgetThe Ordinary Niacinamide 10% + Zinc 1%PHOTO: Sephora$6 at Amazon$6 at Nordstrom$11$6 at SephoraStar QualitiesRemarkable quality for the price pointA little goes a long wayBrightened and evened out skin toneRed FlagsNone we could find!The Ordinary is beloved for its affordable replicas of high-end products, and this 10 percent niacinamide serum fits the bill. It felt fancy to apply, with a slick formula that only required a few drops to spread all around our face and neck. A little goes a long way here — one small bottle lasted us several months, even with twice-daily application.The formula left our skin feeling slightly tight afterwards, but a quick layer of moisturizer was an easy fix. After three weeks, we noticed distinctly brighter skin and our testers were delighted to find their breakouts were few and far between (and much tamer when they did occur).Star Ingredients: 10% niacinamide, 1% zinc |Size:30 ml, 60 mlThe More You KnowIf you have sensitive skin, perform a patch test before using any niacinamide products with concentrations over 5 percent.

Best BudgetThe Ordinary Niacinamide 10% + Zinc 1%PHOTO: Sephora$6 at Amazon$6 at Nordstrom$11$6 at Sephora

Best BudgetThe Ordinary Niacinamide 10% + Zinc 1%

Best Budget

The Ordinary Niacinamide 10% + Zinc 1%

PHOTO: Sephora

$6 at Amazon$6 at Nordstrom$11$6 at Sephora

Star QualitiesRemarkable quality for the price pointA little goes a long wayBrightened and evened out skin toneRed FlagsNone we could find!

Star QualitiesRemarkable quality for the price pointA little goes a long wayBrightened and evened out skin tone

Remarkable quality for the price point

A little goes a long way

Brightened and evened out skin tone

Red FlagsNone we could find!

None we could find!

The Ordinary is beloved for its affordable replicas of high-end products, and this 10 percent niacinamide serum fits the bill. It felt fancy to apply, with a slick formula that only required a few drops to spread all around our face and neck. A little goes a long way here — one small bottle lasted us several months, even with twice-daily application.

The formula left our skin feeling slightly tight afterwards, but a quick layer of moisturizer was an easy fix. After three weeks, we noticed distinctly brighter skin and our testers were delighted to find their breakouts were few and far between (and much tamer when they did occur).

Star Ingredients: 10% niacinamide, 1% zinc |Size:30 ml, 60 ml

The More You KnowIf you have sensitive skin, perform a patch test before using any niacinamide products with concentrations over 5 percent.

The More You Know

If you have sensitive skin, perform a patch test before using any niacinamide products with concentrations over 5 percent.

Best FirmingAlpyn Beauty Firming SerumPHOTO: Sephora$58 at Amazon$58 at Sephora$58 at QVCStar QualitiesFirmer, more supple skin after first useLayers well with other productsNoticeably reduced fine lines around eyesRed FlagsNo noticeable effect on dark spotsSilky and lightweight, this gel-like serum wowed us with its instant and lasting tightening effect. It felt soft and gentle as we applied, leaving a subtle glow but no tacky or unpleasant residue after fully absorbing (which took about a minute).As our skin drank it up, we noticed a gentle tightening effect. These weren’t just temporary results — after two weeks, we began seeing lasting changes in our skin texture, particularly the under-eyes, as it smoothed out our fine lines.Our tester (and even their friends) noticed that their eyes looked brighter and “more alive." However, we think the rambutan in the formula overpowered the niacinamide, as we didn’t notice a difference in our dark spots.Star Ingredients:Wild nettle, niacinamide, rambutan  |Size:30mlWhat is Rambutan?Rambutan is a plant-based alternative to retinol, helping plump, soften, and hydrate skin, leaving it more supple than before.PHOTO: People / Chantia MurphyPHOTO: People / Chantia Murphy

Best FirmingAlpyn Beauty Firming SerumPHOTO: Sephora$58 at Amazon$58 at Sephora$58 at QVC

Best FirmingAlpyn Beauty Firming Serum

Best Firming

Alpyn Beauty Firming Serum

$58 at Amazon$58 at Sephora$58 at QVC

Star QualitiesFirmer, more supple skin after first useLayers well with other productsNoticeably reduced fine lines around eyesRed FlagsNo noticeable effect on dark spots

Star QualitiesFirmer, more supple skin after first useLayers well with other productsNoticeably reduced fine lines around eyes

Firmer, more supple skin after first use

Layers well with other products

Noticeably reduced fine lines around eyes

Red FlagsNo noticeable effect on dark spots

No noticeable effect on dark spots

Silky and lightweight, this gel-like serum wowed us with its instant and lasting tightening effect. It felt soft and gentle as we applied, leaving a subtle glow but no tacky or unpleasant residue after fully absorbing (which took about a minute).

As our skin drank it up, we noticed a gentle tightening effect. These weren’t just temporary results — after two weeks, we began seeing lasting changes in our skin texture, particularly the under-eyes, as it smoothed out our fine lines.

Our tester (and even their friends) noticed that their eyes looked brighter and “more alive." However, we think the rambutan in the formula overpowered the niacinamide, as we didn’t notice a difference in our dark spots.

Star Ingredients:Wild nettle, niacinamide, rambutan  |Size:30ml

What is Rambutan?Rambutan is a plant-based alternative to retinol, helping plump, soften, and hydrate skin, leaving it more supple than before.

What is Rambutan?

Rambutan is a plant-based alternative to retinol, helping plump, soften, and hydrate skin, leaving it more supple than before.

PHOTO: People / Chantia MurphyPHOTO: People / Chantia Murphy

Best for Acne ScarsCosrx The Niacinamide 15 SerumPHOTO: Cosrx$25$20 at Amazon$25 at Nordstrom$25 at UltaStar QualitiesDoesn’t clog poresReduced dark spots, acne scaring, and breakoutsCurbs sebum production to help neutralize oily skinRed Flags15 percent concentration may be too high for sensitive skinStruggling with acne scarring or recurring breakouts? This hyper-concentrated serum is here to help get everything under control. We saw results after a few weeks of daily use, as stubborn acne scars and dry black heads faded away. Our skin texture smoothed out drastically and our scars even lightened up.The formula is non-comedogenic, so you can trust that it won’t clog pores; however, this means it can also be slightly drying and you may need to pair with a face moisturizer, especially if you already have dry skin. We also saw a drastic reduction in breakouts and this serum helped minimized inflammation whenever anything did pop up.Star Ingredients:15% niacinamide, N-acetylglucosamine, zinc PCA, allantoin |Size:20mlPeople / Drea Bocook

Best for Acne ScarsCosrx The Niacinamide 15 SerumPHOTO: Cosrx$25$20 at Amazon$25 at Nordstrom$25 at Ulta

Best for Acne ScarsCosrx The Niacinamide 15 Serum

Best for Acne Scars

Cosrx The Niacinamide 15 Serum

PHOTO: Cosrx

$25$20 at Amazon$25 at Nordstrom$25 at Ulta

Star QualitiesDoesn’t clog poresReduced dark spots, acne scaring, and breakoutsCurbs sebum production to help neutralize oily skinRed Flags15 percent concentration may be too high for sensitive skin

Star QualitiesDoesn’t clog poresReduced dark spots, acne scaring, and breakoutsCurbs sebum production to help neutralize oily skin

Doesn’t clog pores

Reduced dark spots, acne scaring, and breakouts

Curbs sebum production to help neutralize oily skin

Red Flags15 percent concentration may be too high for sensitive skin

15 percent concentration may be too high for sensitive skin

Struggling with acne scarring or recurring breakouts? This hyper-concentrated serum is here to help get everything under control. We saw results after a few weeks of daily use, as stubborn acne scars and dry black heads faded away. Our skin texture smoothed out drastically and our scars even lightened up.

The formula is non-comedogenic, so you can trust that it won’t clog pores; however, this means it can also be slightly drying and you may need to pair with a face moisturizer, especially if you already have dry skin. We also saw a drastic reduction in breakouts and this serum helped minimized inflammation whenever anything did pop up.

Star Ingredients:15% niacinamide, N-acetylglucosamine, zinc PCA, allantoin |Size:20ml

People / Drea Bocook

Best InvestmentDr. Barbara Sturm Niacinamide SerumPHOTO: Sephora$160 at Amazon$160 at SephoraView on Drsturm.comStar QualitiesShrank and smoothed the appearance of poresCreamy, midweight texture feels indulgentRed FlagsResults were not immediate (but did last after 2-3 weeks of use)Designed to target large or sunken pores, this serum worked wonders on our skin during the testing period. Yes, it’s a splurge compared to most products we tested, but if you’re struggling with a coarse or uneven complexion, it’s hard to beat.The formula itself feels luxurious, striking that perfect balance between runny and tacky. It feels indulgent to apply and absorbs within about a minute; it was a breeze to layer beneath the other products in our skincare routine, too.This doesn’t offer the same sort of instant brightness or tightening effects as others we tested — the results revealed themselves slowly — and then all at once. We woke up 10 days into testing and suddenly had all-around younger-looking, brighter, and glowier skin.Star Ingredients: Niacinamide, ectoin, exopolysaccharides (marine plankton extract), glycerine, purslane extract, apricot kernel oil, panthenol, sunflower seed oil, vitamin E |Size:30ml

Best InvestmentDr. Barbara Sturm Niacinamide SerumPHOTO: Sephora$160 at Amazon$160 at SephoraView on Drsturm.com

Best InvestmentDr. Barbara Sturm Niacinamide Serum

Best Investment

Dr. Barbara Sturm Niacinamide Serum

$160 at Amazon$160 at SephoraView on Drsturm.com

Star QualitiesShrank and smoothed the appearance of poresCreamy, midweight texture feels indulgentRed FlagsResults were not immediate (but did last after 2-3 weeks of use)

Star QualitiesShrank and smoothed the appearance of poresCreamy, midweight texture feels indulgent

Shrank and smoothed the appearance of pores

Creamy, midweight texture feels indulgent

Red FlagsResults were not immediate (but did last after 2-3 weeks of use)

Results were not immediate (but did last after 2-3 weeks of use)

Designed to target large or sunken pores, this serum worked wonders on our skin during the testing period. Yes, it’s a splurge compared to most products we tested, but if you’re struggling with a coarse or uneven complexion, it’s hard to beat.

The formula itself feels luxurious, striking that perfect balance between runny and tacky. It feels indulgent to apply and absorbs within about a minute; it was a breeze to layer beneath the other products in our skincare routine, too.

This doesn’t offer the same sort of instant brightness or tightening effects as others we tested — the results revealed themselves slowly — and then all at once. We woke up 10 days into testing and suddenly had all-around younger-looking, brighter, and glowier skin.

Star Ingredients: Niacinamide, ectoin, exopolysaccharides (marine plankton extract), glycerine, purslane extract, apricot kernel oil, panthenol, sunflower seed oil, vitamin E |Size:30ml

Best for RadianceDrunk Elephant B-Goldi Bright DropsPHOTO: Drunk Elephant$38 at Amazon$39 at Sephora$39 at Ulta

Best for RadianceDrunk Elephant B-Goldi Bright Drops

Best for Radiance

Drunk Elephant B-Goldi Bright Drops

PHOTO: Drunk Elephant

$38 at Amazon$39 at Sephora$39 at Ulta

Star QualitiesA little goes a long wayCreates instant radiance while softening and smoothing skinHelped reduce the frequency of breakoutsRed FlagsThe subtle sparkle may not be for everyone

Star QualitiesA little goes a long wayCreates instant radiance while softening and smoothing skinHelped reduce the frequency of breakouts

Creates instant radiance while softening and smoothing skin

Helped reduce the frequency of breakouts

Red FlagsThe subtle sparkle may not be for everyone

The subtle sparkle may not be for everyone

Get your glow on with this niacinamide-infused serum, which works to fade hyperpigmentation and dark spots while light-reflecting pigments perk up tired skin. While the formula is not sparkly or glittery, it is shimmery (think of a champagne-hued highlighter).

While that cosmetic aspect may not appeal to everyone, anyone who already uses a highlighter would likely appreciate that these drops have the same effect, with the added benefits of fewer breakouts, reduction of hyperpigmentation and the appearance of fine lines — plus softer and more balanced skin.

Star Ingredients: Niacinamide, diglucosyl gallic acid, mulberry leaf |Size:0.5 ounces

“I dug out this B-Goldi serum when I came out of hibernation this spring. It’s just what I needed to brighten up my skin on Zoom calls when I didn’t want to apply a full face of makeup. The added skincare benefits are just icing on the cake.” —Erika Reals, former senior shopping editor

People / Alexa Jade Frankelis

Best for BeginnersFirst Aid Beauty Niacinamide Dark Spot SerumPHOTO: Amazon$42$40 at Amazon$42 at Target$42 at DermstoreStar QualitiesFeels both cooling and hydratingLayers seamlessly under moisturizer or makeupSuper quick-drying formulaRed FlagsOnly minor improvement in dark spotsIf you’re looking to brighten up your overall complexion, this is an excellent choice. We loved how soft, creamy, and luxurious this felt; its lightweight formula absorbed almost instantly and layered under our moisturizers and foundations well.While our skin looked brighter after the first use, we noticed real results after about two weeks of consistent use: Our complexion was clearer, our dark spots subtly lightened, and our skin noticeably brighter overall.Star Ingredients: Niacinamide, licorice root, golden kiwifruit, undecylenoyl phenylalanine |Size:30 mlPeople / Gibreel Martinez

Best for BeginnersFirst Aid Beauty Niacinamide Dark Spot SerumPHOTO: Amazon$42$40 at Amazon$42 at Target$42 at Dermstore

Best for BeginnersFirst Aid Beauty Niacinamide Dark Spot Serum

Best for Beginners

First Aid Beauty Niacinamide Dark Spot Serum

PHOTO: Amazon

$42$40 at Amazon$42 at Target$42 at Dermstore

Star QualitiesFeels both cooling and hydratingLayers seamlessly under moisturizer or makeupSuper quick-drying formulaRed FlagsOnly minor improvement in dark spots

Star QualitiesFeels both cooling and hydratingLayers seamlessly under moisturizer or makeupSuper quick-drying formula

Feels both cooling and hydrating

Layers seamlessly under moisturizer or makeup

Super quick-drying formula

Red FlagsOnly minor improvement in dark spots

Only minor improvement in dark spots

If you’re looking to brighten up your overall complexion, this is an excellent choice. We loved how soft, creamy, and luxurious this felt; its lightweight formula absorbed almost instantly and layered under our moisturizers and foundations well.

While our skin looked brighter after the first use, we noticed real results after about two weeks of consistent use: Our complexion was clearer, our dark spots subtly lightened, and our skin noticeably brighter overall.

Star Ingredients: Niacinamide, licorice root, golden kiwifruit, undecylenoyl phenylalanine |Size:30 ml

People / Gibreel Martinez

Best for Sensitive SkinGlossier Super Pure Serum with Niacinamide + ZincPHOTO: Sephora$38$34 at Amazon$34 at Sephora$34 at Glossier.comStar QualitiesSafe for sensitive skinBrightened and evened out skin toneFelt refreshing on our skinRed FlagsDidn’t reduce appearance of fine lines or poresThis water-based formula is gentle yet effective for anyone with sensitive skin. The weightless formula felt refreshing, like splashing cold water on your face. We were running through it quickly as a result, but after a few applications, we discovered you just need two or three drops each application.Patience is a virtue here, as it took a few weeks for this gentle formula to work its magic: Six weeks into testing, we noticed our complexion was brighter overall and our dark spots had subtly faded. Our skin looked clearer and signs of sun damage and inflammation became less noticeable.Star Ingredients: 5% niacinamide, zinc PCA |Size:30ml

Best for Sensitive SkinGlossier Super Pure Serum with Niacinamide + ZincPHOTO: Sephora$38$34 at Amazon$34 at Sephora$34 at Glossier.com

Best for Sensitive SkinGlossier Super Pure Serum with Niacinamide + Zinc

Best for Sensitive Skin

Glossier Super Pure Serum with Niacinamide + Zinc

$38$34 at Amazon$34 at Sephora$34 at Glossier.com

Star QualitiesSafe for sensitive skinBrightened and evened out skin toneFelt refreshing on our skinRed FlagsDidn’t reduce appearance of fine lines or pores

Star QualitiesSafe for sensitive skinBrightened and evened out skin toneFelt refreshing on our skin

Safe for sensitive skin

Felt refreshing on our skin

Red FlagsDidn’t reduce appearance of fine lines or pores

Didn’t reduce appearance of fine lines or pores

This water-based formula is gentle yet effective for anyone with sensitive skin. The weightless formula felt refreshing, like splashing cold water on your face. We were running through it quickly as a result, but after a few applications, we discovered you just need two or three drops each application.

Patience is a virtue here, as it took a few weeks for this gentle formula to work its magic: Six weeks into testing, we noticed our complexion was brighter overall and our dark spots had subtly faded. Our skin looked clearer and signs of sun damage and inflammation became less noticeable.

Star Ingredients: 5% niacinamide, zinc PCA |Size:30ml

Best for Instant GlowGlow Recipe Watermelon Glow Niacinamide Dew DropsPHOTO: Sephora$35 at Amazon$20 at SephoraView on Glowrecipe.comStar QualitiesInstantly hydrates and adds glowBrightened skin over timeLayers well under other productsRed FlagsTakes a bit longer to absorbWe loved the cooling, hydrating boost this serum gave our skin so much that applying it felt like self-care. The thin, buildable gel spreads easily over skin, creating a natural, glow-from-within sort of radiance that won’t irritate your skin, unlike some highlighting products that contain mica powder or glitter. Use as an illuminating primer or give your skin a glossy (but not oily) finish after you’ve applied your makeup — it layers easily both under and over other products. Plus, the watermelon scent is pleasant and non-irritating — although that may not appeal to everyone.Star Ingredients: Watermelon, niacinamide, hyaluronic acid, moringa seed oil |Size:15ml or 40mlPeople / Arnesia Young

Best for Instant GlowGlow Recipe Watermelon Glow Niacinamide Dew DropsPHOTO: Sephora$35 at Amazon$20 at SephoraView on Glowrecipe.com

Best for Instant GlowGlow Recipe Watermelon Glow Niacinamide Dew Drops

Best for Instant Glow

Glow Recipe Watermelon Glow Niacinamide Dew Drops

$35 at Amazon$20 at SephoraView on Glowrecipe.com

Star QualitiesInstantly hydrates and adds glowBrightened skin over timeLayers well under other productsRed FlagsTakes a bit longer to absorb

Star QualitiesInstantly hydrates and adds glowBrightened skin over timeLayers well under other products

Instantly hydrates and adds glow

Brightened skin over time

Layers well under other products

Red FlagsTakes a bit longer to absorb

Takes a bit longer to absorb

We loved the cooling, hydrating boost this serum gave our skin so much that applying it felt like self-care. The thin, buildable gel spreads easily over skin, creating a natural, glow-from-within sort of radiance that won’t irritate your skin, unlike some highlighting products that contain mica powder or glitter. Use as an illuminating primer or give your skin a glossy (but not oily) finish after you’ve applied your makeup — it layers easily both under and over other products. Plus, the watermelon scent is pleasant and non-irritating — although that may not appeal to everyone.

Star Ingredients: Watermelon, niacinamide, hyaluronic acid, moringa seed oil |Size:15ml or 40ml

People / Arnesia Young

Best DrugstoreNeutrogena Hydro Boost + Niacinamide SerumPHOTO: Ulta$31$19 at Amazon$23 at Walmart$29 at Ulta

Best DrugstoreNeutrogena Hydro Boost + Niacinamide Serum

Best Drugstore

Neutrogena Hydro Boost + Niacinamide Serum

PHOTO: Ulta

$31$19 at Amazon$23 at Walmart$29 at Ulta

Star QualitiesDries lightning fastMade our skin feel soft and instantly more plumpRed FlagsDidn’t provide drastic results

Star QualitiesDries lightning fastMade our skin feel soft and instantly more plump

Dries lightning fast

Made our skin feel soft and instantly more plump

Red FlagsDidn’t provide drastic results

Didn’t provide drastic results

It quickly freshened up our teser’s face and the formula was easy to spread; it made our skin feel soft and dewy. Since it dried almost instantly, it would be suitable for anyone with a low-maintenance skincare routine who needs more hydrated, brighter skin.

Star Ingredients: 10% niacinamide, hyaluronic acid |Size:30ml

People / Katherine Polcari

Best for AcnePaula’s Choice Clinical Niacinamide 20% TreatmentPHOTO: Amazon$55 at Amazon$55 at Sephora$55 at DermstoreStar QualitiesShrinks pores and clears up congested skinMelts into skin and improves elasticityA little goes a very long wayRed FlagsNot suitable for sensitive or teenage skinNeeds to be worn with sunscreenAnyone dealing with blotchy skin, clogged bumps, and orange-peel texture in their complexion will find welcome relief with this powerful serum from Paula’s Choice. It packs a serious punch, with a whopping 20 percent concentration of niacinamide — while it’s marketed as gentle enough to use once or twice daily, we found that using it every other day was plenty to see results.Our skin’s elasticity improved dramatically. When we’d apply the serum at night, we woke up to a visibly bouncier, more youthful complexion. It layered smoothly under moisturizer at night and below our daytime skincare in the morning. By the end of the testing period, our skin was smoother and had far fewer breakouts.Star Ingredients: Niacinamide, vitamin C, licorice extract |Size:20 mlThe More You KnowUse SPF when applying this in daytime, since it can make your skin more sensitive to the sun.

Best for AcnePaula’s Choice Clinical Niacinamide 20% TreatmentPHOTO: Amazon$55 at Amazon$55 at Sephora$55 at Dermstore

Best for AcnePaula’s Choice Clinical Niacinamide 20% Treatment

Best for Acne

Paula’s Choice Clinical Niacinamide 20% Treatment

$55 at Amazon$55 at Sephora$55 at Dermstore

Star QualitiesShrinks pores and clears up congested skinMelts into skin and improves elasticityA little goes a very long wayRed FlagsNot suitable for sensitive or teenage skinNeeds to be worn with sunscreen

Star QualitiesShrinks pores and clears up congested skinMelts into skin and improves elasticityA little goes a very long way

Shrinks pores and clears up congested skin

Melts into skin and improves elasticity

A little goes a very long way

Red FlagsNot suitable for sensitive or teenage skinNeeds to be worn with sunscreen

Not suitable for sensitive or teenage skin

Needs to be worn with sunscreen

Anyone dealing with blotchy skin, clogged bumps, and orange-peel texture in their complexion will find welcome relief with this powerful serum from Paula’s Choice. It packs a serious punch, with a whopping 20 percent concentration of niacinamide — while it’s marketed as gentle enough to use once or twice daily, we found that using it every other day was plenty to see results.

Our skin’s elasticity improved dramatically. When we’d apply the serum at night, we woke up to a visibly bouncier, more youthful complexion. It layered smoothly under moisturizer at night and below our daytime skincare in the morning. By the end of the testing period, our skin was smoother and had far fewer breakouts.

Star Ingredients: Niacinamide, vitamin C, licorice extract |Size:20 ml

The More You KnowUse SPF when applying this in daytime, since it can make your skin more sensitive to the sun.

Use SPF when applying this in daytime, since it can make your skin more sensitive to the sun.

Best for Fine LinesSkinCeuticals Metacell Renewal B3 Face Cream with NiacinamidePHOTO: SkinCeuticals$130 at Dermstore$130 at Skinceuticals.com$130 at Bluemercury.comStar QualitiesMattifies and instantly moisturizesSoft and supple skin after first useSmoothes fine lines and enhances overall brightnessRed FlagsRelatively expensiveOnly subtly improved dark spotsThis lightweight water-based emulsion feels pleasant, spreads smoothly, and melts quickly into skin for a boost of hydration that won’t leave any sticky or tacky residue. Frankly, it feels as expensive as it is — this is a clinically-formulated luxury product that’s worth the splurge.If you’re looking for aserum with peptides, niacinamide, glycerin, and triple-peptide concentrate work together in this one to deliver and trap moisture for all-day hydration, promoting cell turnover — and results in a more youthful, luminous complexion.Star Ingredients: 5% niacinamide, 2.5% tri-peptide concentrate, 15% glycerin |Size:50ml

Best for Fine LinesSkinCeuticals Metacell Renewal B3 Face Cream with NiacinamidePHOTO: SkinCeuticals$130 at Dermstore$130 at Skinceuticals.com$130 at Bluemercury.com

Best for Fine LinesSkinCeuticals Metacell Renewal B3 Face Cream with Niacinamide

Best for Fine Lines

SkinCeuticals Metacell Renewal B3 Face Cream with Niacinamide

PHOTO: SkinCeuticals

$130 at Dermstore$130 at Skinceuticals.com$130 at Bluemercury.com

Star QualitiesMattifies and instantly moisturizesSoft and supple skin after first useSmoothes fine lines and enhances overall brightnessRed FlagsRelatively expensiveOnly subtly improved dark spots

Star QualitiesMattifies and instantly moisturizesSoft and supple skin after first useSmoothes fine lines and enhances overall brightness

Mattifies and instantly moisturizes

Soft and supple skin after first use

Smoothes fine lines and enhances overall brightness

Red FlagsRelatively expensiveOnly subtly improved dark spots

Only subtly improved dark spots

This lightweight water-based emulsion feels pleasant, spreads smoothly, and melts quickly into skin for a boost of hydration that won’t leave any sticky or tacky residue. Frankly, it feels as expensive as it is — this is a clinically-formulated luxury product that’s worth the splurge.

If you’re looking for aserum with peptides, niacinamide, glycerin, and triple-peptide concentrate work together in this one to deliver and trap moisture for all-day hydration, promoting cell turnover — and results in a more youthful, luminous complexion.

Star Ingredients: 5% niacinamide, 2.5% tri-peptide concentrate, 15% glycerin |Size:50ml

Best for RednessTypology 12% Niacinamide SerumPHOTO: TypologyView on Typology.com

Best for RednessTypology 12% Niacinamide Serum

Best for Redness

Typology 12% Niacinamide Serum

PHOTO: Typology

View on Typology.com

Star QualitiesLayers easily with moisturizer and makeupEvened out skin tone and reduced rednessFaded sun spots and acne scars over timeRed FlagsSomewhat sticky and viscousSkin texture didn’t improve much

Star QualitiesLayers easily with moisturizer and makeupEvened out skin tone and reduced rednessFaded sun spots and acne scars over time

Layers easily with moisturizer and makeup

Evened out skin tone and reduced redness

Faded sun spots and acne scars over time

Red FlagsSomewhat sticky and viscousSkin texture didn’t improve much

Somewhat sticky and viscous

Skin texture didn’t improve much

The lightweight formula is easy to spread, but due to its viscosity the product would begin to run down our face before we’d replaced the dropper. While we’d love a more seamless application, we were still impressed with the results.

Star Ingredients: 12% niacinamide |Size:15 ml, 30 ml

Searching for niacinamide serum? You might consider one of these other PEOPLE-Tested skincare products that won us over in our rigorous beauty lab testing with their impressive results.

ISDIN K-Ox Eye Cream$106 at Amazon$106 at DermstoreView on Isdin.comFace Gym MultiSculptView on Facegym.comIsdin Isdinceutics Hyaluronic Concentrate$115 at Amazon$115 at DermstoreView on Isdin.comNeutrogena Hydro Boost Hydrating Mask$3 at Target$3 at Walmart$6 at Ulta

ISDIN K-Ox Eye Cream$106 at Amazon$106 at DermstoreView on Isdin.com

ISDIN K-Ox Eye Cream

$106 at Amazon$106 at DermstoreView on Isdin.com

Face Gym MultiSculptView on Facegym.com

Face Gym MultiSculpt

View on Facegym.com

Isdin Isdinceutics Hyaluronic Concentrate$115 at Amazon$115 at DermstoreView on Isdin.com

Isdin Isdinceutics Hyaluronic Concentrate

$115 at Amazon$115 at DermstoreView on Isdin.com

Neutrogena Hydro Boost Hydrating Mask$3 at Target$3 at Walmart$6 at Ulta

Neutrogena Hydro Boost Hydrating Mask

$3 at Target$3 at Walmart$6 at Ulta

What to Know About Niacinamide Serums

Niacinamide BenefitsBrightens skinImproves skin textureReduces inflammationReduces appearance of fine lines and wrinklesHelps clear acneReduces oil productionStrengthens lipid barrierFades hyperpigmentation

Niacinamide Benefits

Brightens skinImproves skin textureReduces inflammationReduces appearance of fine lines and wrinklesHelps clear acneReduces oil productionStrengthens lipid barrierFades hyperpigmentation

Concentration

Niacinamide concentrations typically range from 2 to 10 percent, with some boasting up to 12 to 20 percent — but more doesn’t always mean better in this case.

“I believe in consistency and everything in moderation,” Joy tells PEOPLE. “Niacinamide serums of less than 5 percent are going to be more favorable to avoid possible skin inflammation and irritation.”

Key Ingredients

“When choosing a niacinamide serum, avoid actives, such as alpha hydroxy acids and retinoids in the same formula,” Joy says. “Keep it solo and clean to avoid chemical interactions.”

Skin Reactivity

Experts agree: Niacinamide serum is great to use for all skin types, but recommend a 5 percent concentration if you have sensitive skin or any sort of condition like eczema, rosacea, or psoriasis. However, for targeting dark spots or fine lines, you may need a concentration above 5 percent.

People / Mollie Pendexter

With so many niacinamide products on the market, it can be hard to figure out which will be the most effective for your skin — particularly since concentrations can range from 2 to 20 percent. So we tapped 28 testers with different skin types to test 29 niacinamide serums, carefully cataloguing each product’s consistency, absorption, effectiveness, and overall results.

After the testing period, we rated each serum on a scale of one to five, with five being the best. The serums with the highest average scores earned a spot on this list as well as the PEOPLE Tested seal of approval.

Frequently Asked QuestionsGenerally speaking, you can apply a niacinamide serum once or twice a day on top of cleansed skin, either in the morning or at night, says Dr. Khana. If you plan to use it in the morning, top it off with sunscreen to boost your protection from the sun’s UV rays.“When and how often a niacinamide serum should be applied all depends on the individual’s skin type and sensitivities, their skincare regimen as a whole and the formula’s guidelines,” Joy says.That said, some formulas with higher concentrations of niacinamide, likePaula’s Choice Clinical Niacinamide 20% Treatment, should be used less frequently.“Niacinamide can be effectively combined with many other ingredients such as retinol, vitamin C, kogic acid, and peptides,” says Dr. Khana. On the other hand, she warns that mixing niacinamide with AHAs — like glycolic acid and lactic acid cleansers — can cause irritation and should be avoided.Dr. Joy echoes that advice, noting that she prefers to see niacinamide “combined with soothing [and] cooling ingredients, such as allantoin and glycerin.” We loveSkinCeuticals Metacell Renewal B3, which is formulated with 15 percent glycerin for maximum hydration.Niacinamide serums are beneficial for “virtually all skin types,” says Dr. Khana, who warns that those who may have a rare allergy to the ingredient should avoid it, of course.Joy adds that while niacinamides are great for nearly everyone, the concentration level you seek out should reflect the sensitivity of your own skin.“Not all niacinamide formulas are equal and definitely less is more!” says Joy. “Because so many people today have more sensitive skin due to either stronger at-home modalities available, chemical exfoliants, and our ever-changing environment, stay with choosing a niacinamide concentration of less than 5 percent.”

Frequently Asked Questions

Generally speaking, you can apply a niacinamide serum once or twice a day on top of cleansed skin, either in the morning or at night, says Dr. Khana. If you plan to use it in the morning, top it off with sunscreen to boost your protection from the sun’s UV rays.“When and how often a niacinamide serum should be applied all depends on the individual’s skin type and sensitivities, their skincare regimen as a whole and the formula’s guidelines,” Joy says.That said, some formulas with higher concentrations of niacinamide, likePaula’s Choice Clinical Niacinamide 20% Treatment, should be used less frequently.

Generally speaking, you can apply a niacinamide serum once or twice a day on top of cleansed skin, either in the morning or at night, says Dr. Khana. If you plan to use it in the morning, top it off with sunscreen to boost your protection from the sun’s UV rays.

“When and how often a niacinamide serum should be applied all depends on the individual’s skin type and sensitivities, their skincare regimen as a whole and the formula’s guidelines,” Joy says.

That said, some formulas with higher concentrations of niacinamide, likePaula’s Choice Clinical Niacinamide 20% Treatment, should be used less frequently.

“Niacinamide can be effectively combined with many other ingredients such as retinol, vitamin C, kogic acid, and peptides,” says Dr. Khana. On the other hand, she warns that mixing niacinamide with AHAs — like glycolic acid and lactic acid cleansers — can cause irritation and should be avoided.Dr. Joy echoes that advice, noting that she prefers to see niacinamide “combined with soothing [and] cooling ingredients, such as allantoin and glycerin.” We loveSkinCeuticals Metacell Renewal B3, which is formulated with 15 percent glycerin for maximum hydration.

“Niacinamide can be effectively combined with many other ingredients such as retinol, vitamin C, kogic acid, and peptides,” says Dr. Khana. On the other hand, she warns that mixing niacinamide with AHAs — like glycolic acid and lactic acid cleansers — can cause irritation and should be avoided.

Dr. Joy echoes that advice, noting that she prefers to see niacinamide “combined with soothing [and] cooling ingredients, such as allantoin and glycerin.” We loveSkinCeuticals Metacell Renewal B3, which is formulated with 15 percent glycerin for maximum hydration.

Niacinamide serums are beneficial for “virtually all skin types,” says Dr. Khana, who warns that those who may have a rare allergy to the ingredient should avoid it, of course.Joy adds that while niacinamides are great for nearly everyone, the concentration level you seek out should reflect the sensitivity of your own skin.“Not all niacinamide formulas are equal and definitely less is more!” says Joy. “Because so many people today have more sensitive skin due to either stronger at-home modalities available, chemical exfoliants, and our ever-changing environment, stay with choosing a niacinamide concentration of less than 5 percent.”

Niacinamide serums are beneficial for “virtually all skin types,” says Dr. Khana, who warns that those who may have a rare allergy to the ingredient should avoid it, of course.

Joy adds that while niacinamides are great for nearly everyone, the concentration level you seek out should reflect the sensitivity of your own skin.

“Not all niacinamide formulas are equal and definitely less is more!” says Joy. “Because so many people today have more sensitive skin due to either stronger at-home modalities available, chemical exfoliants, and our ever-changing environment, stay with choosing a niacinamide concentration of less than 5 percent.”

Sophie Doddis a PEOPLE contributor who has been writing for the brand since 2018. She covers travel and lifestyle, with a focus on homegoods and beauty products. She’s previously covered other skincare topics for PEOPLE Tested, includingat-home laser hair removal devices,gua sha tools, andeye creams for dark circles.

For this story, Sophie pored over the results of our niacinamide serum testing and used her expertise as a lifestyle writer to research the highest-rated products. She also tapped renowned skincare experts Nerida Joy and Dr. Trisha Khana to understand the real benefits of niacinamide serums and what to keep in mind when buying them.

Our ExpertsNerida Joyis a celebrity esthetician with over 45 years of experience and more than 100,000 facials under her belt. She has been Jennifer Garner’s go-to facialist for over 25 years.Dr. Trisha Khanais a board-certified dermatologist based in Central Florida. She earned her MD at Columbia University.

Our Experts

Nerida Joyis a celebrity esthetician with over 45 years of experience and more than 100,000 facials under her belt. She has been Jennifer Garner’s go-to facialist for over 25 years.Dr. Trisha Khanais a board-certified dermatologist based in Central Florida. She earned her MD at Columbia University.

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In short, PEOPLE Tested provides recommendations you can trust — every day, every purchase.

source: people.com