Product

Paula's Choice 10% Niacinamide Booster

Niacinamide 10% with a stable vitamin C derivative and a real soothing complex. The best-formulated niacinamide on this list — at seven times the price of the cheap ones.

At a Glance

Recommended

Niacinamide has solid evidence for barrier repair, oil control and evening skin tone. But the strongest studies used lower doses — about 5% for pigmentation and 2% for oil control — and no trial shows 10% works better.

This booster is 10%, a high dose, so Paula's Choice built the rest of the formula around softening it: licorice root, beta-glucan, panthenol, carnosine and green tea are genuine soothing and antioxidant ingredients. They reduce the downside of the high dose; they do not create an extra upside.

It also pairs niacinamide with ascorbyl glucoside, a stable vitamin C derivative — a deliberate combination that quietly disproves the old myth that niacinamide and vitamin C cannot be used together.

Key facts

Key active	Niacinamide 10% + ascorbyl glucoside
Texture	Concentrated booster serum
Best for	Uneven tone, enlarged-looking pores, sensitive skin
Approximate price	$42–$46
Fragrance	Fragrance free

How it works

This is the version that thought about the irritation problem.

10% niacinamide is a high dose, and Paula's Choice built the rest of the formula around softening it: licorice root, beta-glucan, panthenol, carnosine, green tea. These are genuine soothing and antioxidant ingredients, not label decoration.

It also contains ascorbyl glucoside, a stable vitamin C derivative — a deliberate pairing that quietly demolishes the old myth that niacinamide and vitamin C cannot be used together.

Fragrance-free, and Paula's Choice is unusually rigorous about disclosure.

Everyday habits

How to use it

When: morning or night.How much: a few drops, alone or mixed into a moisturizer. Steps: apply to clean skin, before heavier creams. Sunscreen: for tone and pigment, pair with daily SPF for best results. If it tingles: the 10% dose is the likely cause; use less or every other day.

Who should be careful+

It is still 10%, and 10% is still more than the evidence asks for. The strongest studies used 5% for pigmentation and 2% for oil control. No trial shows 10% is better. The soothing ingredients reduce the downside of the high dose — they do not create an upside.

$42 for 20 ml. The Ordinary and Good Molecules sell the same concentration for $6. You are paying for the supporting formula, and whether that is worth seven times the price is a real question.

Some users report tingling on first use — consistent with the concentration.

Small bottle, so cost per ml is high.

Questions people ask+

Is 10% niacinamide better than 5%?No trial shows that. Higher doses can tingle without a clear added benefit.

Can I use niacinamide with vitamin C?Yes. This booster deliberately combines them.

Why does it cost more than cheap niacinamides?You are paying for the soothing and supporting formula around the active.

Is it fragrance-free?Yes. The formula is fragrance-free.

How do I use a booster?Alone on clean skin or mixed into your moisturizer.

Full ingredient list+

Water, Niacinamide, Acetyl Glucosamine, Ascorbyl Glucoside, Butylene Glycol, Phospholipids, Sodium Hyaluronate, Allantoin, Boerhavia Diffusa Root Extract, Glycerin, Dipotassium Glycyrrhizate, Glycyrrhiza Glabra Root Extract, Ubiquinone, Epigallocatechin Gallate, Beta-Glucan, Panthenol, Carnosine, Genistein, Citric Acid, Sodium Citrate, Sodium Hydroxide, Xanthan Gum, Disodium EDTA, Ethylhexylglycerin, Phenoxyethanol

References+

1. Niacinamide: A B vitamin that improves aging facial skin appearance (https://pubmed.ncbi.nlm.nih.gov/16029679/) — Double-blind RCT showing topical niacinamide (5%) improves hyperpigmentation, wrinkles, and elasticity — establishing the well-studied evidence base that the page contrasts against a 10% dose. 2. Influence of niacinamide containing formulations on the molecular and biophysical properties of the stratum corneum (https://pubmed.ncbi.nlm.nih.gov/23220080/) — Controlled study showing niacinamide reduces transepidermal water loss and increases stratum corneum thickness, supporting the claim that niacinamide is a genuine barrier-strengthening active. 3. Ultrasound enhanced skin-lightening effect of vitamin C and niacinamide (https://pubmed.ncbi.nlm.nih.gov/16626384/) — Clinical trial using ascorbyl glucoside together with niacinamide to reduce facial hyperpigmentation, supporting the deliberate niacinamide + stable vitamin C derivative pairing described on the page. 4. Topical vitamins (https://pubmed.ncbi.nlm.nih.gov/18681152/) — Review stating combinations of topical vitamins (including niacinamide/B3 and vitamin C) have additive effects, backing the page's point that niacinamide and vitamin C can be used together. 5. Topical Formulation with Niacinamide Combined with 5 MHz Ultrasound for Improving Skin Ageing: A Double-blind, Randomised, Placebo-controlled Clinical Study (https://pubmed.ncbi.nlm.nih.gov/39171587/) — Randomized placebo-controlled trial showing a topical niacinamide formulation reduced transepidermal water loss and sebum, supporting the soothing/barrier and hydration benefits attributed to niacinamide.