La Mente Proteoglycan — Proteoglycan Extract for Skin Rejuvenation, for Professional Use, 100 mlProteoglycan extract smooths wrinkles, promotes skin rejuvenation, gives it firmness and elasticity. Proteoglycanunique component from salmon cartilage nasal part and has the same excellent functions as hyaluronic acid and collagen. Proteoglycan extracted from salmon nasal cartilage is a glycoprotein in which a sugar chain called glycosaminoglycan is linked to a core protein, has association with hyaluronic acid, and can retain large amounts of water.