The Kérastase Chronologiste Overnight Youth Serum is a luxurious overnight leave-in treatment designed to restore hydration, smoothness and strength while you sleep. Infused with Hyaluronic Acid, Vitamin E and Abyssine, this lightweight serum helps target visible signs of ageing hair, improving softness, elasticity and shine from root to tip.

Working overnight when the hair fibre is most receptive, the formula helps reduce dryness, improve manageability and protect against friction from pillows, leaving hair smoother, fuller-looking and revitalised by morning.

Key Benefits

• Hydrates hair fibres overnight
• Helps reduce signs of ageing hair
• Improves softness, elasticity and shine
• Protects hair from overnight friction damage
• Leaves hair smoother and easier to style

How to Use

1 Apply to damp or dry hair before bedtime
2 Distribute through mid-lengths and ends
3 Leave in overnight
4 No rinse required
5 Style as normal in the morning

Laura loves this product because it transforms hair overnight so it feels softer, smoother and healthier with minimal effort.