The Ordinary Niacinamide 10% + Zinc 1% is a water-based serum that is designed to boost skin brightness, improve skin smoothness, and reinforce the skin barrier over time. It contains a high 10% concentration of Niacinamide (vitamin B3) and zinc PCA. The key ingredients include Niacinamide, Zinc PCA, Pentylene Glycol, Dimethyl Isosorbide, and Tamarindus Indica Seed Gum. The product is vegan, cruelty-free, and formulated without fragrance, alcohol, gluten, nuts, oil, silicone, parabens, sulfates, mineral oil, and other harsh ingredients. It is suitable for all skin types and can be used to target textural irregularities, dryness, dullness, visible shine, and signs of congestion. The serum is recommended to be used after cleansing and before anhydrous serums, oils, suspensions, or creams