Marine Collagen dietary supplement is an enzymatic hydrolysate of collagen from the skins of marine fish. The manganese in the formula contributes to the maintenance of healthy bones and aids in the proper formation of connective tissues. Recommended intake 3 capsules daily. Ingredients Enzymatic collagen hydrolysate from sea fish skins, acerola (Malgiphia punicifolia) fruit extract standardized to 25% vitamin C content, E470b (anti-caking agent), magnesium gluconate - source of manganese, gelatin (capsule shell).3 capsules contain: marine collagen 600mg, acerola fruit extract 66mg (including vitamin C 16.5mg - 20%*), manganese 2mg (100%)*. * RWS - Reference Intake Value.