Country Life Maxi-Collagen C & A + Biotin Powder is a collagen supplement for everyday activities because over time collagen level diminishes, therefore it is important to supplement with collagen to support skin, hair, nails, joints and bone health. High potency formula has 7,000 mg of collagen type I and III plus Vitamin A, C and Biotin. The ingredients in this flavorless product supports all three layers of the skin.