Vital Proteins Marine Collagen 221gVital Proteins Marine Collagen is a dietary supplement. These are unflavored collagen peptides in powder form made from the scales of white fish. 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,