Kérastase Chronologiste Overnight Youth Hair Serum

Kérastase Chronologiste Overnight Youth Hair Serum is a lightweight leave in overnight hair treatment designed to target visible signs of ageing hair, including dryness, dullness and loss of softness. Powered by Pro-Xylane™ to help strengthen the hair fibre and Ochrophyta Algae to deeply hydrate and revitalise, it works overnight to smooth frizz, improve softness and leave hair fuller and healthier looking by morning.