Why Niacinamide Belongs in Most Routines

Niacinamide (vitamin B3) is one of the most well-researched and versatile ingredients in topical skincare. Unlike many actives, it's effective across multiple concerns and is unlikely to cause irritation.

What it actually does

Niacinamide increases ceramide synthesis, which strengthens the skin barrier. It reduces the transfer of melanosomes (pigment packets) from melanocytes to skin cells, which gradually lightens hyperpigmentation. It regulates sebum production and has been shown to reduce visible pore size and improve skin texture over time.

The retinol pairing

Niacinamide + retinol is actually one of the most well-studied pairings in dermatology. Niacinamide can help buffer the irritation that comes with starting retinol — they don't interfere with each other at typical concentrations.

The vitamin C question

The concern about niacinamide + vitamin C forming niacin is real at high concentrations and temperatures. At normal skincare use, it's not a practical issue. But using them at different times of day (vitamin C in AM, niacinamide in PM) is the simplest way to sidestep it.

Concentration guide

Effective at 2–5% for most benefits. Studies on hyperpigmentation use 5%. The ceiling for most people is around 10% — above that, there's less benefit and more chance of irritation.

What the evidence says

Niacinamide has strong peer-reviewed support across barrier repair, tone, sebum, and pore appearance — including Bissett et al. (Dermatologic Surgery, 2005), which documented improvements in hyperpigmentation, texture, and fine lines with topical niacinamide. Its mechanism for pigment (reducing melanosome transfer rather than dissolving melanin) and its excellent tolerability are well characterized, which is why it's recommended so broadly.

This article is general educational information, not medical advice. Skincare needs vary from person to person. Always patch-test new products and consult a qualified professional (such as a dermatologist) for persistent or serious skin concerns.