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, and lack of volume/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

BENEFITS:

• Nourishing
• Shiny hair
• Brings volume
• Luxurious care

HOW TO USE

Step 1: Before bedtime, your hair can be either dry or damp.

Step 2: Take one pump of the Overnight Youth Serum into your hands.

Step 3: Gently spread the serum between your palms and distribute it evenly through the lengths and ends of your hair. There's no need to apply it directly to the scalp unless specified for specific concerns.

Step 4: Do not rinse in the morning. Let the serum work its magic as you sleep