This pectin-based Vitamin C supplement is gluten free with no artificial flavors, no synthetic dyes, no high fructose corn syrup, no artificial sweeteners. Maximum Strength dosage(1) with Vitamin C 1000mg per serving; Adults chew 4 Tangerine flavored gummies daily. Vitamin C is an antioxidant that increases Iron absorption and is needed for Collagen synthesis to support skin health. These Vitamin C gummies help support the immune system and a healthy upper respiratory tract. Immune support supplement: contains one 80 count bottle of Nature Made Vitamin C Maximum Strength Dosage(1) Gummies for a 20-day supply.