Sadoer Keratin Polypeptide Essential Oil is a repairing hair serum enriched with keratin polypeptide and DWI-keratin technology designed to restore damaged and weak hair. It penetrates deeply into the hair shaft to repair split ends, strengthen hair fibers, and improve overall hair texture. The lightweight, non-greasy formula helps smooth frizz, control dryness, and add a natural glossy shine without weighing hair down. Suitable for all hair types, it nourishes and hydrates while enhancing softness and manageability. Regular use leaves hair healthier, brighter, and visibly smoother with a salon-like finish.