Sports Research Marine Collagen Unflavored 12 oz 340 g provides 10 grams of low molecular weight Types I and III collagen peptides per serving with 18 amino acids including glycine, proline, and hydroxyproline. Each serving delivers 9 grams of protein in only 35 calories, supporting healthy skin, hair, nails, joints, and overall wellness, easily mixed into drinks, smoothies, or recipes.