The Ordinary Niacinamide. The ordinary niacinamide 10% + zinc 1% 357 reviews. Niacinamide (vitamin b3) is indicated to reduce the appearance of skin blemishes and congestion.

The ordinary niacinamide 10% serum is great for those with dry skin as it improves skin barrier function and the appearance of dry, flaky skin. You do not want to mix the ordinary 100% niacinamide powder with very acidic formulas. Niacinamide is a b vitamin (specifically b3) used primarily to treat acne and dark spots, and the ordinary niacinamide 10% + zinc 1% serum advertises itself as such.