Applied Nutrition Liquid Collagen Skin Revitalization 10 tubes. This product helps fight the effects of aging and supports healthy skin hydration. It contains Type 1 & 3 Hydrolyzed Collagen and is a concentrated drink mix. This dietary supplement is NSF Contents Certified and provides intensive nourishment for skin, hair, and nails with 4,000 mg of Collagen, 2,000 mcg of Biotin, and 6,000 mcg of Silica. It contains only 25 calories per serving. Collagen is the most important element of human skin, providing structure, elasticity, and protection while helping to retain moisture. As aging occurs, collagen naturally decreases, leading to thinner, drier, and more fragile skin. Liquid Collagen Skin Revitalization® contains 4,000 mg of hydrolyzed collagen (type I & III) along with an Antioxidant Blend of botanicals and nutrients like Biotin & Silica. Mix one concentrated Liquid-Tube into 16 ounces of water per day.