Kerastase Resistance Serum Extentioniste Leave In Hair Serum 1.7 oz Seven This lightweight formula helps maintain

This lightweight formula helps maintain color clarity

instant volume booster

leaving hair cleaner

denser new growth

Kerastase Resistance Serum Extentioniste Leave In Hair Serum 1.7 oz Seven This lightweight formula helps maintainKerastase Resistance Serum Extentioniste Leave In Hair Serum 1. 7 oz is a strengthening scalp and hair serum designed to support healthier looking lengths while helping reduce breakage and improve hair resilience. Its lightweight leave in formula helps nourish the scalp and leave hair smoother, softer, and more manageable. What It Does This leave in serum helps strengthen weakened hair while supporting healthier looking growth and reducing the