
Niacinamide (Vitamin B3)
A pore-shrinking, oil-regulating vitamin that fades dark spots and evens skin tone — the modern skincare workhorse.
Niacinamide is a form of Vitamin B3 that's become the most-researched ingredient in modern skincare after retinol. In men's grooming, niacinamide is the go-to fix for oily skin, enlarged pores, uneven tone, and the persistent redness that comes from years of shaving.
- ›Reduces sebum production over 2–4 weeks.
- ›Visibly shrinks pore appearance.
- ›Fades post-inflammatory hyperpigmentation.
- ›Effective at 2–5% concentration.
- ›Stable with almost all other actives.
Full entry coming soon — our editors are finishing it now.
History & Origin
Niacinamide, a form of vitamin B3, moved from nutrition science into dermatology in the 1990s when studies showed topical application improved barrier function, reduced redness, and lowered sebum output. It is now one of the few cosmetic actives with broad clinical support across several distinct claims, and it is unusually stable and well tolerated compared with retinoids or acids.
Uses & Benefits
- ›Strengthens the skin barrier by increasing ceramide production
- ›Reduces redness and the look of irritation around a beard line
- ›Moderates sebum output on oily skin
- ›Helps fade post-acne and post-ingrown dark marks over months
- ›Layers safely with nearly every other active, including retinoids
Safety & Sourcing
Niacinamide is well tolerated at the usual 2 to 5 percent range. Very high concentrations (10 percent and above) can cause flushing or irritation in sensitive users, without added benefit for most. It is a good choice for men who cannot tolerate acids or retinoids.
FAQ
Does niacinamide help with beard itch?+
Indirectly. By strengthening the barrier and reducing inflammation it makes the skin under a beard less reactive.
What concentration should I look for?+
Two to five percent. Higher is not better and is more likely to irritate.
Can I use niacinamide with vitamin C?+
Yes. The old claim that they cancel each other out came from lab conditions that do not reflect finished formulas.
Found in Our Products
Related Comparisons
Sources
- Bissett, D. L. et al. (2005). Niacinamide: a B vitamin that improves aging facial skin appearance. Dermatologic Surgery.
- Draelos, Z. D. et al. (2006). The effect of 2% niacinamide on facial sebum production. Journal of Cosmetic and Laser Therapy.




