Pharm Nature Collagène Marin de l' Atlantique 450g is a food supplement that helps keep joints, muscles and tendons flexible, thanks to its highly concentrated collagen formula, which is better absorbed by the body. This grapefruit-flavored food supplement also contains ash, nettle and vitamins C, B2, B3 and A, which contribute to the maintenance of normal skin. Food supplements should never replace a healthy, varied and balanced diet and a healthy lifestyle.