KÉRASTASE Chronologiste Overnight Youth Serum For Aging Hair

Intensive Night Treatment for Aging Hair: Age-corrective serum provides deep hydration and care while you sleep. | Powerful Anti-Aging Ingredients: Infused with Pro-Xylane and Ochrophyta Algae for strength, anti-frizz, and smoothness. | Proven Results in One Use: 66% less frizz, 32% more shine, and 92% stronger hair.* | Luxurious Sensory Experience: Lightweight leave-in formula with a fragrance of bergamot, freesia, and patchouli. | Ease of Use: Simply apply to dry or damp hair before bedtime—no rinsing required.