Our copper peptide hair serum contains copper tripeptide-1, castor oil, and nicotinamide. It can activate dormant hair follicles, promote hair growth, and rejuvenate hair. Its use method is very simple: 1. Take the appropriate amount of essence drops on the scalp, evenly spread; 2. Gently massage until absorbed. Deep penetration delivers essential nutrients to the scalp and hair follicles and strengthens the hair roots.