10/01/2026
What Does Niacinamide Actually Do for Your Skin?
Niacinamide—also known as vitamin B3—is one of skincare's ultimate multitaskers.
It can help support the skin barrier, improve the appearance of uneven tone, help manage excess oil, and leave skin looking smoother and healthier.
And because it can be found in everything from serums to moisturizers, it's easy to add to a routine.
One ingredient. A surprisingly long résumé.