Tripeptide Hair Care Serum, Nourishes, Strengthens, Softeners And Improves Frizzy HairOur tripeptide hair serum contains coffee extract and rosemary oil. It strengthens the supply of nutrients from the scalp to the roots of the hair. Its use method is very simple: after shampooing, gently dry the hair, apply the essence to the scalp, evenly apply, gently massage the scalp with the fingertips to promote absorption. And it can reduce scalp problems.