Paula's Choice Clinical 20% Niacinamide Treatment in an opaque tube
Promising for Large Pores
What Makes This Different

This is the highest-concentration niacinamide treatment available from a major skincare brand. While the 10% Booster focuses on broad brightening, this 20% formula is specifically engineered for stubborn pore concerns with unique additions — meadowsweet extract for MMP inhibition, purslane for anti-inflammatory support, and pullulan for immediate pore-blurring — that the lower-strength product doesn't include.

Paula's Choice

Paula's Choice 20% Niacinamide Treatment Review

Maximum Strength Pore Treatment
treatment gel clinical Paraben Free Fungal Acne Safe Cruelty Free Vegan

A bold escalation product for stubborn pore concerns that pushes niacinamide to its commercial ceiling. The supporting formula is thoughtful, the gel texture is well-suited for targeted use, and results for persistent enlarged pores are real — but most people will find the 10% Booster delivers all the niacinamide benefits they need at a better value.

$54.00
0.67 fl oz
4.1 ★★★★★
1,500 reviews
Made in United States Launched 2020 All-year use PAO: 12 months
Buy at Amazon ♥
Run it through our tools Clashes with my routine? Pregnancy-safe? Find a cheaper dupe Patch-test it first

Note: While niacinamide itself is extensively studied, clinical data specifically comparing 20% to lower concentrations is limited. Our assessment is based on the established niacinamide evidence base, the quality of the supporting formula, and user feedback. The product's scoring may be revised as more independent research on ultra-high niacinamide concentrations becomes available.

Verdicts

How well it fits each concern

Verdict by concern tap a concern for the case

Promisingfor Large PoresNiacinamide has trial-level evidence for large pores but no guideline or regulatory standing yet — promising, short of a recommendation; the other actives here are not yet assessed for it.Moderate evidenceGentleNo reviews collected yet

The case for it

  1. Niacinamide has trial-level evidence for this concern but no guideline or regulatory standing yet.
  2. It is present at an effective concentration, declared or high in the ingredient list.
  3. The formula carries none of the triggers this concern is sensitive to.

What would change this: Guideline or regulatory standing for the active on this concern would move this from a promising bet to a recommendation.

Same rule for everyone. “Promising” is the verdict on 7,858 of 45,024 concern verdicts across the catalog; rule R9p decided 7,858 of them. Unchanged since September 5, 2026, engine 5.1.1.

Brand or formulator? Disclose a concentration or correct a fact →

Show the work
Rule
R9p — 0.5.0: 'Unproven' beside three filled dots read as one question answered twice with opposite words (7,018 rows). The chip measures standing, the dots measure trial volume; where the row carries at least one RCT or a tier-2 source (moderate dots) and the active is present at a working level, the honest word is Promising. Unproven is reserved for plausible-standing rows with limited or weak evidence, or an under-dosed form. Same rank as Unproven — a bet either way; the dots order them. · the full register
Carrying active
Niacinamide
Standing
plausible — trials support it
Form
adequate (declared 20%) — studied range 4%, from the trials on the row; needs leave-on contact; judge it after ~8 weeks
Tolerability
gentle
Row checked
against its sources on July 17, 2026 (evidence table ev-2026.09-r228)

The studies behind the evidence row

All large pores products →
Promisingfor Excess OilinessNiacinamide has trial-level evidence for excess oiliness but no guideline or regulatory standing yet — promising, short of a recommendation; the other actives here are not yet assessed for it.Moderate evidenceGentleNo reviews collected yet

The case for it

  1. Niacinamide has trial-level evidence for this concern but no guideline or regulatory standing yet.
  2. It is present at an effective concentration, declared or high in the ingredient list.
  3. The formula carries none of the triggers this concern is sensitive to.

What would change this: Guideline or regulatory standing for the active on this concern would move this from a promising bet to a recommendation.

Same rule for everyone. “Promising” is the verdict on 7,858 of 45,024 concern verdicts across the catalog; rule R9p decided 7,858 of them. Unchanged since September 5, 2026, engine 5.1.1.

Brand or formulator? Disclose a concentration or correct a fact →

Show the work
Rule
R9p — 0.5.0: 'Unproven' beside three filled dots read as one question answered twice with opposite words (7,018 rows). The chip measures standing, the dots measure trial volume; where the row carries at least one RCT or a tier-2 source (moderate dots) and the active is present at a working level, the honest word is Promising. Unproven is reserved for plausible-standing rows with limited or weak evidence, or an under-dosed form. Same rank as Unproven — a bet either way; the dots order them. · the full register
Carrying active
Niacinamide
Standing
plausible — trials support it
Form
adequate (declared 20%) — studied range 2%, from the trials on the row; needs leave-on contact; judge it after ~8 weeks
Tolerability
gentle
Row checked
against its sources on July 17, 2026 (evidence table ev-2026.09-r228)

The studies behind the evidence row

All excess oiliness products →
Good choicefor HyperpigmentationNiacinamide is a trial-supported active for hyperpigmentation; this gel carries it at 20%.Moderate evidenceGentleNo reviews collected yet

The case for it

  1. Niacinamide has trial-supported standing for this concern.
  2. It is present at an effective concentration, declared or high in the ingredient list.
  3. The formula carries none of the triggers this concern is sensitive to.

Same rule for everyone. “Good choice” is the verdict on 9,564 of 45,024 concern verdicts across the catalog; rule R5 decided 9,072 of them. Unchanged since September 5, 2026, engine 5.1.1.

Brand or formulator? Disclose a concentration or correct a fact →

Show the work
Rule
R5 — Trial-supported or guideline-supported active, adequately or plausibly dosed. · the full register
Carrying active
Niacinamide
Standing
supported — trials support it
Form
adequate (declared 20%) — studied range 2–5%, from the trials on the row; needs leave-on contact; judge it after ~8 weeks
Tolerability
gentle
Row checked
against its sources on July 17, 2026 (evidence table ev-2026.09-r228)

The studies behind the evidence row

All hyperpigmentation products →
Promisingfor Dark SpotsNiacinamide has trial-level evidence for dark spots but no guideline or regulatory standing yet — promising, short of a recommendation; the other actives here are not yet assessed for it.Moderate evidenceGentleNo reviews collected yet

The case for it

  1. Niacinamide has trial-level evidence for this concern but no guideline or regulatory standing yet.
  2. It is present at an effective concentration, declared or high in the ingredient list.
  3. The formula carries none of the triggers this concern is sensitive to.

What would change this: Guideline or regulatory standing for the active on this concern would move this from a promising bet to a recommendation.

Same rule for everyone. “Promising” is the verdict on 7,858 of 45,024 concern verdicts across the catalog; rule R9p decided 7,858 of them. Unchanged since September 5, 2026, engine 5.1.1.

Brand or formulator? Disclose a concentration or correct a fact →

Show the work
Rule
R9p — 0.5.0: 'Unproven' beside three filled dots read as one question answered twice with opposite words (7,018 rows). The chip measures standing, the dots measure trial volume; where the row carries at least one RCT or a tier-2 source (moderate dots) and the active is present at a working level, the honest word is Promising. Unproven is reserved for plausible-standing rows with limited or weak evidence, or an under-dosed form. Same rank as Unproven — a bet either way; the dots order them. · the full register
Carrying active
Niacinamide
Standing
plausible — trials support it
Form
adequate (declared 20%)
Tolerability
gentle
Row checked
against its sources on July 17, 2026 (evidence table ev-2026.09-r228)

The studies behind the evidence row

All dark spots products →

Also listed for Rough Texture, Blackheads and Dullness — the actives here (Niacinamide, Acetyl Glucosamine, spiraea ulmaria extract, Purslane Extract) are in our research queue for those concerns; there is no verdict until their evidence rows are written. That is a gap in our table, not a mark against the product.

Where our review and the verdict differ. The review below was written on the formulation and the published trials; the verdicts above apply the stricter standing test in our methodology — an active earns a recommendation only with guideline or regulatory standing for the concern. Where the two disagree, the verdict is DermApproved’s position.

A verdict is DermApproved’s assessment of how well a product’s ingredients fit a concern — never a claim about what the product treats. Evidence dots and collected reviews sit beside it and are never blended in. Rules 0.5.1 · evidence table ev-2026.09-r228 · how we decide

Assessment

Pros & Cons

Pros

  • ✓ Highest commercially available niacinamide concentration from a major evidence-based brand
  • ✓ Gel texture with pullulan provides immediate pore-blurring alongside long-term active benefits
  • ✓ Meadowsweet extract uniquely targets MMP-driven collagen degradation around pore structures
  • ✓ Completely fragrance-free, silicone-free, and paraben-free with a clean ingredient list
  • ✓ Pregnancy-safe at any niacinamide concentration — rare for high-strength treatments
  • ✓ Effective oil control and matte finish particularly suited for oily skin types
  • ✓ Multi-pathway brightening with acetyl glucosamine, vitamin C derivative, and licorice extract

Cons

  • ✗ Clinical evidence specifically supporting 20% over 10% niacinamide is limited
  • ✗ More frequent temporary flushing compared to lower-concentration niacinamide products
  • ✗ Expensive for a small 0.67 oz bottle with a narrower use case than the 10% Booster
  • ✗ Gel texture may feel slightly drying for non-oily skin types with prolonged use
  • ✗ Not as versatile as the 10% Booster — designed for targeted application rather than mixing
Review

Full Review

When a brand that built its reputation on scientific rigor decides to release a product at double the concentration anyone else offers, it's worth asking whether they're following the evidence or chasing a bigger number for the label. With the Clinical 20% Niacinamide Treatment, Paula's Choice appears to be doing a bit of both — and the result is a product that's genuinely useful for a specific audience, even if that audience is smaller than the marketing might suggest.

The context matters. Paula's Choice already had the 10% Niacinamide Booster, one of the best-regarded niacinamide products on the market. This 20% Treatment wasn't created to replace it — it was created for the people who used the 10% faithfully and still couldn't get their pores to cooperate. That's a real population. Enlarged pores, particularly on the nose and inner cheeks, are stubbornly resistant to topical treatment, and some skin simply seems to need a higher dose before niacinamide's sebum-regulating and pore-tightening effects kick in.

The formula isn't just twice the niacinamide — it's a fundamentally different product from the 10% Booster. The gel texture replaces the liquid format, designed for targeted application to problem areas rather than mixing into other products. The botanical supporting cast includes meadowsweet extract, which brings natural salicylate derivatives and MMP-inhibiting activity to address the collagen degradation around pore openings that makes them look stretched. Purslane extract adds anti-inflammatory heft to help manage the increased flushing potential that comes with doubling the niacinamide concentration. And pullulan — a clever addition — provides an immediate tightening film that blurs pore appearance on contact while the actives work on longer-term structural improvements.

The acetyl glucosamine and ascorbyl glucoside carry over from the 10% formula, maintaining the multi-pathway brightening approach. Licorice root, allantoin, panthenol, green tea catechins, camellia flower, and boerhavia root round out a supporting cast that reads like a soothing-ingredients encyclopedia — necessary, because at 20%, the formula needs all the calming support it can get. Silica gives the gel its soft matte drop-down, and sclerotium and xanthan gums hold the whole thing at a consistency that stays where you put it.

Let's address the elephant in the room: does 20% niacinamide actually work better than 10%? The honest answer is that the clinical evidence is limited. Most published niacinamide studies test concentrations of 2-5%, and the handful that go higher don't specifically compare 10% to 20%. What we do know is that niacinamide's benefits don't scale linearly with concentration — there's a point of diminishing returns, and nobody can say with confidence where it falls between 10% and 20%. Paula's Choice's own clinical testing claims visible pore improvement, but independent head-to-head data against their 10% product is not publicly available.

That said, the anecdotal evidence from users who've tried both is interesting. Those with genuinely stubborn enlarged pores — particularly oily-skinned individuals who found the 10% Booster helpful but insufficient — report measurable improvement with the 20%. The temporary flushing is more common than with the 10%, but it remains harmless: it's a vasodilation response, not barrier damage, and it's worth being precise about that distinction, because niacinamide is one of the few actives that strengthens the barrier as concentration climbs rather than eroding it. The flush typically fades within twenty minutes and diminishes with continued use.

The gel texture deserves comment. It's lightweight, absorbs cleanly, and sits well under moisturizer without pilling. There's a subtle matte quality that makes it particularly pleasant for oily skin, and it doesn't leave the slight tackiness that some gel formulations suffer from. It's clearly designed for application to the T-zone and pore-prone areas rather than full-face slathering, which is the right approach for a concentration this high. Expect oil control within a fortnight, visible pore refinement somewhere around week four to six, and the pigmentation benefits to keep accruing out to three months.

The value proposition is where this product stumbles. At $54 for 0.67 ounces — roughly the same size and similar price to the 10% Booster — you're getting double the niacinamide but half the versatility. The 10% Booster can be mixed into anything, used morning and evening on the full face, and suits nearly every skin type. This 20% Treatment is specifically for oily-to-combination skin with persistent pore concerns, applied as a targeted spot treatment. For a narrower use case at a similar price, the value math doesn't always add up, and a fair chunk of the fifteen hundred-odd reviews are from people who couldn't tell the difference between the two.

The fragrance-free, silicone-free, paraben-free formula is predictably clean — Paula's Choice doesn't deviate from this standard — and it's fungal-acne safe besides. The opaque tube protects the formula adequately and allows controlled dispensing. And critically, niacinamide at any concentration remains pregnancy-safe, making this one of the very few high-strength treatments available to expectant parents dealing with hormonal pore enlargement.

This is a product for people who know exactly what they need and have confirmed, through experience, that lower niacinamide concentrations aren't enough. For everyone else — and that's most people — the 10% Niacinamide Booster remains the smarter, more versatile choice. But for the stubborn-pore contingent that the 10% couldn't fully satisfy, this 20% Treatment fills a genuine gap. Sometimes, more really is more.

Formula

Key Ingredients

The hero actives that drive this product's performance.

IngredientFunctionEvidence
Niacinamide (20%) At an unprecedented 20% concentration — double what most high-strength niacinamide products offer — this is engineered to tackle stubborn, stretched pores and hardened clogged bumps that resist lower concentrations. The mega-dose works by aggressively regulating sebum production, inhibiting melanosome transfer, and boosting ceramide synthesis at a level designed to produce visible results faster than standard niacinamide formulations. Emerging for Hyperpigmentation
Acetyl Glucosamine Reprises its role from the 10% Booster as niacinamide's synergistic partner for hyperpigmentation reduction — at this higher niacinamide concentration, the pairing is formulated to deliver more aggressive tone-evening than the brand's lower-strength option, specifically targeting the stubborn dark spots and post-inflammatory marks that persist despite standard treatments. Not yet assessed
Spiraea Ulmaria Extract Meadowsweet extract is a newer addition not found in the 10% Booster — it contains natural salicylic acid derivatives and tannins that help regulate excess oil production and offset the collagen-degrading enzymes (matrix metalloproteinases) that contribute to pore stretching and loss of skin firmness around pore openings. Not yet assessed
Portulaca Oleracea Extract Purslane extract provides potent anti-inflammatory and antioxidant activity, specifically chosen for this high-concentration formula to help offset any irritation potential from the 20% niacinamide dose while supporting collagen integrity around pore structures. Not yet assessed
Pullulan A polysaccharide that creates an immediate tightening film on the skin surface, providing the instant pore-blurring visual effect while the niacinamide works on the longer-term structural improvements underneath. This gives users a gratifying immediate result alongside the gradual active benefits. Not yet assessed
Full INCI List

Water (Aqua), Niacinamide, Pentylene Glycol, Butylene Glycol, Glycerin, Acetyl Glucosamine, Ascorbyl Glucoside, Glycyrrhiza Glabra (Licorice) Root Extract, Spiraea Ulmaria (Meadowsweet) Extract, Portulaca Oleracea (Purslane) Extract, Camellia Japonica Flower Extract, Epigallocatechin Gallate, Boerhavia Diffusa Root Extract, Camellia Sinensis (Green Tea) Leaf Extract, Allantoin, Lecithin, Pullulan, Panthenol, Silica, Xanthan Gum, Sclerotium Gum, Propanediol, Sodium Phytate, Phenoxyethanol, Ethylhexylglycerin

Safety & Formulation Facts
✓ Pregnancy Safe ✓ Fragrance Free✓ Alcohol Free✓ Oil Free✓ Silicone Free✓ Paraben Free✓ Sulfate Free✓ Cruelty Free✓ Vegan✓ Fungal Acne Safe
Compatibility

Skin Match

Best For
Works For
Not Ideal For
Routine Step

treatment

Time of Day

AM & PM

Layering Tips

Apply a thin layer directly to areas of concern — particularly the T-zone, nose, and cheeks where pores are most visible. Let absorb for 1-2 minutes before following with moisturizer. The gel texture sits well under other products but should be applied to clean skin before heavier layers.

Results Timeline

Immediate subtle pore-blurring effect from the pullulan film-forming agent. Oil control improvements within 1-2 weeks. Visible pore refinement and texture smoothing at 4-6 weeks. Maximum pigmentation and deep pore improvements at 8-12 weeks.

Pairs Well With
BHA exfoliants for enhanced pore clearanceRetinol for comprehensive anti-agingLightweight hydrating moisturizersClay masks as a weekly supplement for oil control
Planning a combo? Check it against what you already use
Conflicts With
Direct mixing with L-ascorbic acid may cause temporary flushing — use at separate times of day
See where it fits — layering order & night-splitting
Sample AM Routine
  1. Gentle cleanser
  2. THIS PRODUCT on areas of concern
  3. Lightweight moisturizer
  4. Sunscreen SPF 30+
Sample PM Routine
  1. Gentle cleanser
  2. BHA exfoliant (2-3 times weekly)
  3. Paula's Choice 20% Niacinamide Treatment
  4. Moisturizer
Evidence

Science & Expert Perspective

The Science

The niacinamide evidence base is extensive, but the specific question this product raises — whether 20% performs meaningfully better than 10% — has limited direct clinical support. Most landmark niacinamide studies, including the Bissett et al. work published in Dermatologic Surgery (2005), tested 5% concentrations. A 2021 comprehensive review in Antioxidants (MDPI) examining niacinamide's mechanisms confirmed that niacinamide boosts NAD+ biosynthesis, enhances ceramide and free fatty acid production in the stratum corneum, and inhibits melanosome transfer — mechanisms that theoretically benefit from higher concentrations up to a saturation point, though that saturation point hasn't been definitively established.

The meadowsweet extract (Spiraea ulmaria) in this formula targets a different mechanism than niacinamide alone. Published research has demonstrated that plant-derived salicylate compounds and tannins can inhibit matrix metalloproteinases (MMPs) — enzymes that degrade collagen and elastin around pore structures. This MMP inhibition may help explain why some users report pore improvements with this formula that they didn't achieve with niacinamide-only products.

Purslane extract (Portulaca oleracea) has been studied for its anti-inflammatory properties, with research showing it can reduce pro-inflammatory cytokine production. In a high-concentration niacinamide formula where temporary vasodilation-induced flushing is more common, this anti-inflammatory support serves both a tolerability function and a skin-health function, as chronic low-grade inflammation itself contributes to pore enlargement and skin aging.

The acetyl glucosamine and niacinamide combination continues to be supported by the Kimball et al. research showing synergistic hyperpigmentation reduction — an effect that may be amplified at higher niacinamide concentrations, though this specific interaction hasn't been studied at the 20% level.

Dermatologist Perspective

Dermatologists acknowledge that niacinamide is one of the safest and most versatile topical actives, but many express measured skepticism about the clinical necessity of a 20% concentration. Dermatology practitioners frequently note that published evidence supports niacinamide benefits at 2-10%, and the incremental benefit of doubling beyond 10% has not been established in controlled studies. That said, dermatologists recognize that individual patient response varies, and some patients with particularly stubborn pore concerns may benefit from higher concentrations when lower ones prove insufficient. Dermatologists universally appreciate the clean, fragrance-free formula and pregnancy-safe profile.

Guidance

Usage & Recommendations

How to Use

Apply a thin layer of the gel to clean, dry skin on areas of concern — typically the T-zone, nose, and inner cheeks where pores are most prominent. Allow 1-2 minutes to absorb before applying moisturizer. Can be used morning and evening. In the morning, follow with sunscreen. If experiencing flushing, start with once-daily evening use and increase frequency as tolerance builds. The gel can be applied under or over lighter serums but should go on before moisturizer.

Value Assessment

At $54 for 0.67 fl oz, this is priced similarly to the Paula's Choice 10% Niacinamide Booster but serves a narrower purpose. The targeted application means the bottle may last longer than the 10% Booster used twice daily on the full face — potentially 3-4 months of T-zone application. Whether the premium over simpler niacinamide products is justified depends on whether lower concentrations have genuinely failed you. This is an escalation product, and like all escalation products, it's only worth the investment if you've exhausted the more affordable first-line options.

Who Should Buy

Oily to combination skin types with persistent enlarged pores, stubborn texture, or clogged bumps that haven't adequately responded to standard niacinamide products at 5-10%. Especially valuable for those who've used the 10% Booster and want more aggressive pore treatment without adding retinoids or acids.

Who Should Skip

Anyone whose pore and texture concerns are well-managed by lower-concentration niacinamide products — there's no reason to use 20% if 10% is working. Dry and sensitive skin types may find the high concentration and gel texture too drying or flushing-prone. Budget-conscious consumers should try the 10% Booster first.

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Details

Product Details

Texture

Lightweight gel with a smooth, non-sticky consistency — slightly thicker than the 10% Booster's liquid format, designed for targeted application to pore-prone areas

Scent

No added fragrance — neutral scent

Packaging

Opaque tube with a controlled dispensing tip — protects the formula from light and air while allowing precise application to targeted areas

Finish
mattenon-greasylightweight
What to Expect on First Use

Absorbs quickly with an immediate subtle tightening sensation from the pullulan. Some users experience mild temporary flushing — more common at this 20% concentration than with lower-strength niacinamide products. This is a harmless vasodilation response that typically subsides within 15-20 minutes and diminishes with continued use.

How Long It Lasts

2-3 months with once or twice daily targeted application

Period After Opening

12 months

Opened yours? Track the toss-by date
Best Season

All Year

Certifications
Leaping Bunny certified cruelty-free
Background

The Story Behind This Product

Paula's Choice developed this as an escalation product for customers whose pore and texture concerns didn't fully respond to the 10% Booster. The 20% concentration was a calculated risk — no major brand had gone this high before — driven by customer feedback requesting stronger niacinamide options for persistent enlarged pores and stubborn clogged bumps that standard concentrations couldn't address.

About Paula's Choice Established Brand (5–20 years)

Paula's Choice was founded in 1995 by cosmetics industry critic Paula Begoun, who built the brand on ingredient transparency and evidence-based formulation. The brand has a strong reputation among skincare enthusiasts and dermatologists for its research-driven approach and has been widely reviewed by independent sources over its nearly three-decade history.

Brand founded: 1995 · Product launched: 2020
Myth vs. Reality

Common Myths

Myth

Double the niacinamide percentage means double the results.

Reality

The relationship between niacinamide concentration and efficacy isn't linear. Most clinical studies showing significant benefits use 2-5% niacinamide. At 20%, the potential for faster results exists, but so does the potential for temporary flushing. This product is designed for stubborn concerns that haven't responded to lower concentrations, not as a first-line treatment for everyone.

Myth

High-concentration niacinamide can damage the skin barrier.

Reality

Unlike high-concentration acids or retinoids, niacinamide actually strengthens the skin barrier by boosting ceramide production — even at 20%. The temporary flushing some users experience is a vasodilation response, not barrier damage. The formula's allantoin, panthenol, and botanical extracts provide additional barrier support.

FAQ

Frequently Asked Questions

Is 20% niacinamide better than 10%?

Not necessarily. Most clinical research demonstrates significant benefits at 2-5% niacinamide. The 20% concentration is designed specifically for stubborn pores and texture concerns that haven't responded to lower concentrations. If the 10% Booster or similar products are working well for you, there's no need to upgrade. This is an escalation product for persistent concerns, not a universally better option.

Will 20% niacinamide cause flushing?

Temporary flushing is more common at 20% than at lower concentrations. This is a harmless vasodilation response — not an allergic reaction or sign of damage — that typically subsides within 15-20 minutes and often diminishes with continued use. The formula's allantoin, panthenol, and purslane extract help minimize this response.

Can I use this on my whole face or just problem areas?

Paula's Choice recommends targeted application to areas of concern — T-zone, nose, cheeks where pores are most visible. You can use it on the full face, but the 20% concentration and gel texture are specifically designed for spot-treatment-style use on stubborn pore areas rather than all-over application.

How is this different from the Paula's Choice 10% Niacinamide Booster?

Beyond the obvious concentration difference, the 20% Treatment has a gel texture (vs. liquid), is designed for targeted pore treatment (vs. all-over brightening), and includes unique ingredients like meadowsweet for MMP inhibition and pullulan for immediate pore-blurring. The 10% Booster is better for general brightening and tone evening; this is specifically for stubborn pores and bumps.

Is Paula's Choice 20% Niacinamide Treatment safe during pregnancy?

Yes — niacinamide is considered safe during pregnancy and breastfeeding at any concentration. This formula contains no retinoids, no high-concentration acids, and no ingredients flagged for pregnancy concerns. It's one of the few high-strength treatments that pregnant individuals can use freely.

Reviews

What Reviewers Tend to Say

Recurring themes our editors read across retailer reviews of this product — summaries in our words, not quotations, and not a substitute for your own patch test.

Common Praise

Visible pore refinement with consistent use

Excellent oil control throughout the day

Smooth gel texture absorbs cleanly without tackiness

Noticeable improvement in skin texture and brightness

Fragrance-free and gentle despite the high concentration

Common Complaints

Temporary flushing occurs more frequently than with 10% products

Expensive for the small bottle size

Some users see no additional benefit over the 10% Booster

Gel texture can feel slightly drying for non-oily skin types

Strong concentration may not be necessary for most users

Notable Endorsements
Featured in NewBeauty reader surveysRecommended in pore-minimizing product roundups
Related Conditions
large poresexcess oilinesshyperpigmentationdark spotsrough textureblackheadsdullness
Related Ingredients
niacinamideacetyl glucosaminevitamin clicorice rootgreen tea