Kerastase - Chronologiste Overnight Youth Serum

Overnight Youth Serum by Kérastase is an age-corrective night treatment infused with Pro-Xylane™ and Ochrophyta Algae, designed to reverse the visible signs of aging during night time.

Targeting dryness, dullness,frizz, lack of volume and thickness, this leave-in serum delivers intensive overnight care. Just one pump to deliver powerful actives deep into the hair.

Powered by 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.

HAIR BENEFITS AFTER 1 NIGHT
INCREASES FIBER DIAMETER BY +5.7%*
-66% FRIZZ*
+32% SHINE*
+92% MORE STRENGTH *
77% SAY THEIR HAIR FEELS REVITALIZED**

*Instrumental test after 1 use of Overnight Youth Serum
**Consumer test after one application of full Chronologiste routine, bain+masque+Overnight serum