Kerastase Chronologiste Overnight Youth Hair Serum

Kerastase Chronologiste Overnight Youth Hair Serum is a luxurious overnight leave-in treatment designed to reverse the visible signs of aging hair while you sleep. Powered by Pro-Xylane and Ochrophyta Algae, the lightweight serum deeply hydrates, smooths frizz, enhances shine, improves volume, and strengthens the hair fiber from root to tip. Its fast-absorbing, non-greasy formula works overnight to leave hair visibly fuller, softer, and healthier by morning, while also providing 450?F heat protection for next-day styling. Infused with the signature Chronologiste fragrance, this age-corrective serum transforms your nighttime routine into a luxurious haircare ritual. Available in 30ml and 90ml sizes.