Vital Proteins Collagen Peptides 284gVital Proteins Collagen Peptides is a dietary supplement. These are unflavored collagen peptides in powder form. Collagen peptides are small, soluble protein particles obtained from a beef or marine source. Collagen is the second most abundant substance in the human body after water. It is found in all our connective tissues, tendons, ligaments and bones. As we age, our bodies naturally produce less and less collagen, so it's recommended to