For your skin
A multitasker that calms redness, evens out skin tone, and helps oily skin balance out. One of the safest do-a-little-of-everything ingredients.
Want the science? Keep reading ↓Mechanism of action
Niacinamide works through 4 pathwaysin skin. Here's what each looks like at the cellular level:
Stimulates ceramide synthesis in the stratum corneum, reducing transepidermal water loss.
Blocks melanosome transfer from melanocytes to keratinocytes — fewer dark spots at the surface.
Reduces sebum excretion rate in oily skin types at 2-5% concentrations.
Inhibits the NF-κB pathway; calms redness and post-inflammatory flushing.
Why we tier this strong
8 cited papers across 3 countries. Multiple positive efficacy results plus regulatory backing. Clears our published bar (Strong = 15+ studies with multiple randomized controlled trials (RCTs), or a single large longitudinal cohort).
Layering matrix
- Vitamin Clow
Sensitive skin may flush.
Read the research
- Niacinamide + Zinc for Acne: The Evidence, the Limits, the RealityA popular stack with real supporting data, and some honest caveats about what it can't do.5 min read · Acne
- Retinol for Beginners: The Realistic Six-Month PlanHow to introduce retinol without the flaking, purging panic, and the week-two regret.5 min read · Fine Lines & Firmness
- Seven Sunscreen Myths That Won't Die (and the Science That Kills Them)From 'SPF 100 is twice as good as SPF 50' to 'I don't need sunscreen indoors,' with the actual numbers.6 min read · Sun Damage
- Vitamin C: Why Your Serum Turns Orange (and What to Do About It)The stability problem behind L-ascorbic acid and the alternative forms that sidestep it.4 min read · Dark Spots
- How to Layer Actives Without Destroying Your BarrierA working guide to the fifteen most common ingredient conflicts: which to separate, which to alternate, and which to stop worrying about.6 min read · Sensitive / Irritated
- The 30-Second Skin Quiz Everyone Should TakeEight skin concerns, two telltale symptoms each, and the one or two ingredients you should be looking for.5 min read · Uneven Texture
- The Myth of Pore-Shrinking ProductsPores aren't muscles. Here's what's actually happening when a product makes them look smaller.4 min read · Oiliness
- What Niacinamide Actually Does (And What It Doesn't)A single molecule does four different jobs in the skin, and the old cancellation myth no longer holds up.5 min read · Oiliness
Compare with
Cited research
Korean authors et al., Anti-acne and Tolerance Assessment of a Cleanser Containing Salicylic Acid, Gluconolactone and Niacinamide, Asian Journal of Beauty and Cosmetology 2024;22(3):383-391 — 4-week clinical trial (n=43 oily acne-prone): significant reduction in inflammatory + non-inflammatory acne lesions and sebum content; 2-week safety (n=39 sensitive skin) confirmed tolerance
Korean authors et al., A split-face study to evaluate the efficacy of a dissolving microneedle-encapsulated niacinamide skin patch for the reduction of facial hyperpigmentation, Archives of Aesthetic Plastic Surgery 2022;28(4):113-118 — 17-patient 2-week split-face RCT: DMN niacinamide patch significantly reduced epidermal pigmentation score and melanin score vs untreated control side
Liu H et al., Topical azelaic acid, salicylic acid, nicotinamide, sulphur, zinc and fruit acid (alpha-hydroxy acid) for acne, Cochrane Database of Systematic Reviews 2020;5:CD011368 — conclusion: clinical benefit is unclear
MFDS Approved Functional Cosmetic Active — Niacinamide (whitening). Korean Ministry of Food and Drug Safety, Cosmetic Functional Active Ingredient List; authorized concentration documented in Jeon JS et al., International Journal of Cosmetic Science 2016;38(3):286-93 (PMID:26564311) per the Korean Functional Cosmetics Codex
CIR Final Report of the Safety Assessment of Niacinamide and Niacin, International Journal of Toxicology 2005;24(Suppl 5):1-31
Bissett DL et al., Niacinamide: A B vitamin that improves aging facial skin appearance, Dermatologic Surgery 2005;31(7 Pt 2):860-5 — 12-week double-blind RCT (n=50) showed 5% niacinamide reduced fine lines, hyperpigmentation, red blotchiness, and sallowness with improved elasticity
Greatens A et al., Effective inhibition of melanosome transfer to keratinocytes by lectins and niacinamide is reversible, Experimental Dermatology 2005;14(7):498-508 — niacinamide reversibly inhibits melanosome transfer at safe concentrations without compromising cell viability
Hakozaki T et al., The effect of niacinamide on reducing cutaneous pigmentation and suppression of melanosome transfer, British Journal of Dermatology 2002;147(1):20-31 — mechanism: niacinamide inhibits melanosome transfer from melanocytes to keratinocytes
Sources: PubMed · KCI · J-Stage · CNKI · Wanfang · SFD · MFDS · Cochrane · SCCS · CIR. Every entry points to a specific document. See methodology for what each outcome label means.