Kérastase Chronologiste Overnight Youth Serum 90mL

Overnight Youth Serum by Kérastase is an age-corrective night treatment infused with Pro-Xylane™ and Ochrophyta Algae, designed to reduce the visible signs of hair-ageing during nighttime. Containing Pro-Xylane™, a green chemistry molecule known for its ultimate anti-aging action, and Ochrophyta Algae, the fastest growing algae in the world, a bio-sourced deep sea treasure that captures the regenerative power of the ocean. Its transformative quick-break texture melds instantly into the hair's lengths, leaving a perfect finish and enveloping the hair with the signature Chronologiste fragrance that turns routine care into a luxurious ritual.

Key ingredients

Containing Pro-Xylane™, a green chemistry molecule known for its ultimate anti-aging action, and Ochrophyta Algae, the fastest growing algae in the world, a bio-sourced deep sea treasure that captures the regenerative power of the ocean.

Made without

Parabens.

Consumer testing results

OVERNIGHT YOUTH SERUM BENEFITS AFTER 1 NIGHT

Increases fibre diameter by +5.7%*

-66% frizz*

+32% shine*

+92% more strength *

77% say their hair feels revitalised**

*Instrumental test after 1 use of Overnight Youth Serum.

**Consumer test after one application of full Chronologiste routine, Bain + Masque + Overnight serum.

Usage

Step 1: Apply on dry or damp hair before bedtime. Spread one pump into hands and distribute on lengths and ends.

Step 2: No need to rinse in the morning.

In case of direct contact with eyes, rinse immediately and thoroughly.