Paula’s Choice 10% Niacinamide Booster Review: The Premium Alternative to The Ordinary Niacinamide

Paula’s Choice 10% Niacinamide Booster sits in a specific niche — the premium answer to The Ordinary Niacinamide 10% + Zinc 1%. Both feature 10% niacinamide as their marquee active. Both target the same concerns (large pores, oiliness, dark spots, uneven tone). Both are fragrance-free and dermatologist-tested. The Ordinary sells its version at around $8 for 30ml; Paula’s Choice sells its version at around $44 for 0.67oz (roughly 20ml).

The math is uncomfortable. Even accounting for size differences, Paula’s Choice costs about 5x per milliliter. The obvious question is whether the formulation difference justifies the price gap. The honest answer is “for most users, no — but the difference isn’t nothing either.”

What it is

Paula’s Choice 10% Niacinamide Booster is a lightweight water-based serum featuring 10% niacinamide supported by ascorbyl glucoside (a vitamin C derivative), panthenol, licorice root extract, and multiple humectants. It comes in a 0.67oz dropper bottle.

“Booster” positioning. Marketed as a supplement to an existing routine rather than a standalone serum. Meant to be mixed into moisturizer or layered on targeted areas rather than used as a primary serum layer.

10% niacinamide. The maximum concentration typically used in a stable formulation. Higher percentages exist but don’t proportionally improve results — 10% is essentially the ceiling.

Ascorbyl glucoside. A stable vitamin C derivative. Converts to L-ascorbic acid in skin. Gentler than direct L-ascorbic acid formulations, more expensive to formulate.

Licorice root extract (glycyrrhiza glabra). Contains glabridin, a tyrosinase inhibitor with mild brightening effect.

Panthenol (provitamin B5). Humectant with mild anti-inflammatory properties.

Water-based. No oily finish. Layers under any moisturizer without issue.

Fragrance-free, alcohol-free, dye-free.

Premium packaging. Glass dropper bottle with pipette. More sophisticated than The Ordinary’s plastic bottle.

Who this is for

Users with disposable income and preference for premium products. The primary differentiator vs The Ordinary is price and brand.

Users of the broader Paula’s Choice ecosystem. If you already use Paula’s Choice BHA, retinol, or other products, brand-line coherence has value.

Sensitive users who prefer ascorbyl glucoside to L-ascorbic acid. The C derivative in this product is gentler than direct L-AA formulations.

Users seeking the licorice extract benefit. Licorice glabridin is a real brightening compound with a slower, gentler mechanism than direct tyrosinase inhibitors.

Users of a “booster” workflow. Some prefer targeted-application boosters over full serum layers.

Users prioritizing sensory elegance. The texture is slightly more refined than The Ordinary version.

Users of the entire Paula’s Choice booster line. If you’re already using their retinol or resveratrol boosters, this fits.

Who this isn’t the best pick for:

• Budget-focused users — The Ordinary version is 20% of the price.
• Users only wanting niacinamide — the supporting actives are the price differentiator; if you don’t value them, don’t pay for them.
• Users of large single-active serums — this is a small booster, not a workhorse.
• New skincare users — start with cheaper options and level up if you like results.

Key ingredients

Niacinamide (vitamin B3) — 10%. Reduces sebum production (helping oiliness and large pores), supports the skin barrier, reduces melanosome transfer (helping pigmentation), and has anti-inflammatory effects. Well-established, well-tolerated, effective.

Ascorbyl Glucoside. A vitamin C derivative bonded to glucose for stability. Converts to L-ascorbic acid slowly in skin. Provides antioxidant and mild brightening effects with less irritation risk than direct L-ascorbic acid.

Glycyrrhiza Glabra (Licorice) Root Extract. Contains glabridin, a tyrosinase inhibitor. Mild brightening effect over time. Also has anti-inflammatory properties.

Panthenol (Provitamin B5). Humectant. Mildly anti-inflammatory. Supports the skin barrier.

Sodium Hyaluronate. Low-molecular-weight hyaluronic acid. Humectant.

Adenosine. Cell-signaling ingredient with some anti-inflammatory benefit and mild wrinkle-reduction claims.

Allantoin. Soothing agent.

Various humectants and stabilizers. Butylene glycol, glycerin — standard supporting ingredients.

Preservatives. Phenoxyethanol and ethylhexylglycerin — standard preservative package.

The supporting active roster is genuinely more sophisticated than most competing niacinamide serums. Whether the incremental benefit justifies the price is the buyer’s judgment call.

How it performs

Real niacinamide effects. Oil reduction, pore-appearance improvement, and brightening over 8-12 weeks — same as any 10% niacinamide product.

Slightly more elegant texture than The Ordinary. The Ordinary’s version has a slightly tacky finish; Paula’s Choice absorbs a bit cleaner.

Non-irritating. Even for sensitive users. The ascorbyl glucoside is gentler than direct vitamin C alternatives.

Layers cleanly under makeup. Water-based with no oily residue.

Absorbs in 30-60 seconds.

No fragrance sensitivity issues. Fragrance-free.

Modest additional brightening from licorice. Effect is real but subtle over 4-8 weeks.

Compatible with almost any other active. Layers with vitamin C, retinol, acids without conflict.

Value per bottle. 0.67oz at 3-5 drops per application, twice daily, lasts 6-10 weeks. Roughly $5-7 per week — a real premium over cheaper alternatives.

How to use it

Standalone application (twice daily):

1. Cleanse and dry.

2. Apply humectant serum (HA, glycerin-based toner).

3. Dispense 3-5 drops onto fingertips.

4. Apply to face and neck.

5. Wait 30 seconds.

6. Apply moisturizer.

7. AM: apply SPF.

“Booster” workflow (as intended):

Mix a few drops into your moisturizer before application. Extends the product and integrates the actives into your existing routine.

Targeted application:

Apply concentrated to pigmentation, oily zones, or areas of concern rather than full-face. Extends product life significantly.

Combination therapy:

• Morning: vitamin C (if desired) + niacinamide booster + moisturizer + SPF
• Evening: retinol + niacinamide booster + moisturizer

Booster into existing serum:

Mix a few drops into your existing hyaluronic acid serum or peptide serum. Combines the benefits without adding routine steps.

Best paired with

Vitamin C serum (morning, before). Layers cleanly. The niacinamide-vitamin C incompatibility myth is largely debunked.

Retinol (evening, before). Complementary anti-aging + barrier support.

Hyaluronic acid serum (before, on damp skin). Extra hydration base.

Peptide serum (either time). Complementary anti-aging pathway.

Ceramide moisturizer (after). Any quality moisturizer works.

SPF 30+ (morning). Non-negotiable with brightening products.

Paula’s Choice BHA (evening). Same-brand pairing. BHA first, wait, then niacinamide.

Skin-type suitability

Worthy alternatives

The Ordinary Niacinamide 10% + Zinc 1% — around $8. The obvious comparison. 90% of results at 20% of the price.

Naturium Niacinamide Serum 12% Plus Zinc 2% — around $18. Higher niacinamide concentration. Middle-ground price.

Good Molecules Niacinamide Brightening Toner — around $10. Toner format, similar concentration.

Glow Recipe Niacinamide Dew Drops — around $35. Fruit-based supporting actives, glow-focused positioning.

The INKEY List Niacinamide Serum — around $7. Simpler formulation, comparable to The Ordinary.

Paula’s Choice CLINICAL Discoloration Repair Serum — around $58. Same-brand more premium option with tranexamic acid.

SkinCeuticals B5 Gel — around $54. Different active focus (HA + panthenol) but premium-category comparison.

Bottom line

Editorial Rating: 4.5 / 5

Paula’s Choice 10% Niacinamide Booster is a genuinely good product with a hard value proposition. The formulation is more sophisticated than The Ordinary’s version — adding ascorbyl glucoside and licorice extract meaningfully contributes to results. But at 5x the price per milliliter, the “results per dollar” math heavily favors The Ordinary for most users.

For $44 for 0.67oz, this makes sense for a specific user profile: someone with disposable income who values formulation sophistication, prefers premium brand quality, is already using other Paula’s Choice products, or specifically wants the ascorbyl glucoside inclusion. For a first niacinamide serum, or for anyone shopping on cost-per-result, The Ordinary is the smarter choice.

Both are effective. Neither is wrong. The Paula’s Choice product is objectively better formulated but not proportionally better in results. Choose based on your priorities — brand and formulation sophistication vs raw cost-per-active.