Liquid Collagen Skin Revitalization This truly unique and innovative product is specially designed to fight the effects of aging. Simply mix one concentrated liquid-tube into 16 ounces of water per day. Each great-tasting liquid-tube delivers superior levels of collagen, plus a broad spectrum of antioxidants and nutrients such as biotin and silica, to help revitalize the skin from the inside out. Key ingredients include: Hydrolyzed Collagen: a full 4,000 mg to help replenish the body's supply of collagen. Biotin: the essential super beauty nutrient. Vitamins A and C: powerful antioxidant compounds to promote internal collagen production. Horsetail: nutrient-dense botanical and natural source of silica. Antioxidant Blend: a combination of Super Fruits and Green Tea Extract to protect skin from the damaging effects of free-radicals.