This peptide mix is obtained from marine collagen (fish skin), so this active is not suitable for vegans. This is one of the few animal-derived actives we use as Skin Actives because plants don’t make collagen. The peptides can be as short as two amino acids, and as long as about 30 amino acids length, up to molecular weight 5,000. Collagen peptides are rich in glycine, proline, alanine and other amino acids. Use this active to help reduce the appearance of fine lines and wrinkles and improve the overall tone and texture of the skin. The peptides will also promote and support the synthesis of collagen.