CARTILAGE: Vitamin C contributes to the normal formation of collagen for the normal functioning of cartilage. MUSCLES: Proteins contribute to the preservation of muscle mass. Magnesium contributes to the normal functioning of muscles. BONES: Proteins and magnesium contribute to the maintenance of bones in normal conditions. Vitamin C contributes to the normal formation of collagen for the normal functioning of bones. SKIN: Vitamin C contributes to the normal formation of collagen for the normal functioning of the skin. Vitamin C contributes to the protection of cells against oxidative damage. REDUCE FATIGUE: Magnesium and vitamin C help reduce fatigue. Not suitable for phenylketonurics or magnesium intolerant individuals. Those who require a protein-restricted diet (severe kidney or liver insufficiency) should take the product under medical supervision. Usage instructions: Take 11.5 grams daily (the entire content of the dispenser) dissolved in a minimum of 150 ml of water, milk (alone or with coffee, cocoa...), plant-based drinks and other liquids, or yogurt. Ingredients: Hydrolyzed collagen protein 87g, magnesium citrate 8.4g, glycine, L-ascorbic calcium (vitamin C) 421mg, forest fruit flavor, hyaluronic acid 217mg.