Niacinamide

Niacinamide. Niacinamide is the amide form of vitamin B3 and one of the best-studied multifunctional cosmetic actives. It supports barrier function, reduces melanosome transfer, and has anti-inflammatory effects.Benefitsbarrier support (evidence: strong)brightening and reduction in the look of hyperpigmented spots (evidence: strong)Pairs well withhyaluronic acid, ceramides, retinoids, tranexamic acidGood to knowHigh-strength formulas can sting or flush some users.