CLINICALLY SHOWN RESULTS: Our concentrated niacinamide serum is high-quality, formulated with pure 12% niacinamide and 2% zinc PCA, clinically shown to reduce the appearance of dark spots, pores, fines lines & wrinkles ADVANCED & HIGH-QUALITY FORMULA: This serum combines a high concentration of niacinamide (vitamin B3) with zinc salt of pyrrolidone carboxylic acid to visually refine facial complexion. SUITABLE FOR ALL SKIN TYPES: Our facial serum is appropriate for those with aging, blemish-prone, combo, dry, & sensitive skin. A patch test prior to use is advised. Use 1-2 pea-sized drops AM + PM, gradually increasing use until skin develops tolerance PROUDLY FORMULATED: All of our products are formulated to be pH level appropriate, made in the USA, Vegan, Cruelty Free, Paraben Free, Gluten Free, Skin Compatible, & Dermatologist Tested. Most of our skincare is Synthetic Fragrance Free SKINCARE THAT WORKS: At Naturium, we are committed to providing affordable skincare essentials that use only ingredients directly benefiting the skin’s health, which support the integrity and effectiveness of our formulations › See more product details