Kérastase Resistance Sérum Extentioniste Scalp & Hair Serum

• This reinforcing scalp and hair serum strengthens the hair fibers starting from the root to encourage long, healthy hair.strengthening scalp and hair serum for stronger fiber from the roots. • This energizing leave-in treatment is key to reinforcing and promoting a healthy scalp.applied with a gentle scalp massage, it's ideal to achieve strong, long healthy hair.