Ingredient

Vitamin B3

On labels: Niacinamide

Multitasker: helps fade the look of dark marks, reduces the look of pores and shine, and supports the skin barrier.

What it does

Brightens the look of skin · Supports the barrier · Balances the look of oil

Evidence

Evidence: Strong · Well studied for skincare use.

Often chosen for

Dark spots and post-breakout marks, Oily, shiny skin, Blackheads and visible pores, Breakout-prone skin, Dull, uneven-looking tone, Over-exfoliated, stressed skin, Skin prone to redness

Skin types

Dry, Oily, Combination, Normal, Sensitive

Typical amount

2-10% in a formula

Best time

Morning or evening