Naka BioActive Marine Collagen Pro Extra Strength - Hair, Skin & Nails, Joint Health, Digestive Health, Bone Strength. 150vegicapsFeaturing 2000mg of Bioactive Marine Collagen Peptides, Pro Collagen has been clinically proven effective for joint, bone and skin health. Collagen is a factor in maintaining healthy cartilage and or joint health, which is especially important as with age. Cartilage is the connective tissue disk that acts as a cushion and eliminates friction in your joints. Collagen is also one of the main building blocks of our skin making Pro Collagen from Naka an