The Ordinary Niacinamide 10% + Zinc 1% - high-strength vitamin and mineral blemish formula. Niacinamide (Vitamin B3) is indicated to reduce the appearance of skin blemishes and congestion. A high 10% concentration of this vitamin is supported in the formula by zinc salt of pyrrolidone carboxylic acid to balance visible aspects of sebum activity. Alcohol-free, oil-free, nut-free, vegan.