One drop niacinamide serum is made to revitalize your skin. It is made with 10% niacinamide and 1% Zinc. This serum helps to minimize your pores and regulate oil production. It enhances your skin texture and removes dullness and uneven skin tone. It is a lightweight and fast-absorbing formula. It strengthens the skin's natural barrier, leaving your skin feeling smooth, refreshed, and glowing. Suitable for all skin types. It also works wonders for refining the skin’s texture.