Solaray Collagen Keratin Capsules are formulated with key components like collagen and keratin, which are indeed important structural proteins in the body, playing a role in connective tissue, hair, and skin health. The supplement contains two types of collagens - type I and III marine collagen and type II chicken collagen. These different types of collagens may have specific benefits for various tissues in the body. Each 2-capsule serving provides 500 mg of collagen (250 mg of type I and iii marine collagen and 250 mg of type ii chicken collagen). Collagen is known for its abundance in the body and its role in maintaining the structural integrity of various tissues. Solaray Collagen Keratin Capsules contains alpha lipoic acid, hyaluronic acid, keratin (solubilized). These capsules also are enriched with added vitamin C, zinc, and copper. Vitamin C is known for its role in collagen synthesis, vitamin C is essential for maintaining healthy skin, connective tissues, and more. Zinc and copper are minerals, are also involved in collagen synthesis and have additional benefits for overall health. Alpha lipoic acid acts as an antioxidant, potentially providing protection against oxidative stress. Hyaluronic acid is known for its role in skin hydration and joint health. Collagen supplements are highlighted as a convenient way to incorporate this essential protein into your diet. Many people turn to supplements when they may not get enough collagen through their regular diet. Overall, the formula is designed to support various aspects of health, including hair, skin, nails, joints, bones, and muscles. Collagen and keratin play crucial roles in these areas, and the additional ingredients are included to support healthy collagen synthesis.