10% Niacinamide 1% Zinc PCA is an Excellent Product that calms the skin while aiding and reducing transdermal water loss while increasing hydration.  1% Zinc PCA is an excellent antioxidant that protects the skin from free radicals and other potentenial damage . Tamarind  is an antioxidant as well and can aid in slowing down the aging process. of the skin   If you have severe sundamge and aging , this is the products for you! Literally Life Changing !  Excellent for Skin Inflamation issues such as Rosacea .