Science-Based Nutrition Dietary Supplement Dissolves Easily in Water! Pleasant, Mild Flavor! Essential Structural Support for Hair, Skin, Nails, Tendons, Ligaments and Bones Non-GMO and Gluten Free Collagen is the major structural protein in connective tissue and the most abundant protein in the human body. It is mainly responsible for maintaining the strength and flexibility of bones, joints, skin, tendons, ligaments, hair, nails, blood vessels and eyes, among other tissues throughout the body. Best Collagen Types 1 & 3 contains pure collagen protein, providing the fundamental building blocks for growth and maintenance of healthy tissues. Taken as a supplement, this product provides the body with the raw material needed to support the strength and integrity of essential structures. Best Collagen Types 1 & 3 Powder is enzymatically pre-hydrolyzed into component amino acids with a low molecular size for optimal absorption and utilization by the body.Doctor's Best