Hyalur Zn Ultra Concentrated Serum for skin with imperfections contains Niacinamide (Vitamin B3) 10% — brightens and evens the skin’s surface, helps reduce hyperpigmentation, and shrinks pores. Zinc (Zinc PCA) regulates the work of sebaceous glands, inhibits the growth of pathogenic bacteria. Hydrolyzed milk proteins normalize sebum production. Methyl sulfonylmethane (dimethyl sulfone) fights hyperpigmentation and brightens the skin. Helps with post-acne. Low molecular hyaluronic acid retains moisture in the skin and stimulates the production of your own hyaluronic acid. The serum is approved for use for problem skin in all ages. Suitable for all skin types.