Chronologiste - Age Correcting Serum for Hair Weakened by the Effects of Time

Sérum Nuit Jeunesse de Kérastase is an age-correcting night care infused with Pro-Xylane™ and... see more

Sérum Nuit Jeunesse de Kérastase is an age-correcting night care infused with Pro-Xylane™ and Ochrophyta algae, designed to correct the visible signs of capillary aging overnight.

Targeting dryness, dullness, frizz, loss of volume and thickness, this leave-in serum offers intensive night care. A single gesture is all it takes to diffuse powerful active ingredients to the heart of the fiber.

Enriched with Pro-Xylane™, a green chemistry molecule recognized for its exceptional anti-aging action, and Ochrophyte Algae, the world's fastest-growing algae, a biosourced treasure from the deep sea that captures the regenerating power of the ocean.

Its transformative "quick-break" texture melts instantly into lengths, leaving a perfect finish and enveloping hair in the parfum signature Chronologiste

Apply to dry or towel-dried hair before bedtime. Apply pressure in the hands and distribute evenly over lengths and ends. Do not rinse.

Wake up to denser, healthier, softer hair.

BENEFITS FROM THE FIRST NIGHT
+5.7% increase in fiber diameter**
-66% frizz*
+32% shine*
92% stronger hair*
77% of women who tried it said their hair felt revitalized**
*Instrumental test after 1 use of Youth Night Serum
**Consumer test on 90 women after 1 use of the routine Chronologiste bath+mask+night youth serum

FOR WHAT TYPE OF HAIR?
For hair weakened by the effects of time: dryness, dullness, loss of volume and thickness, frizz.

CAPILLAIRE

LONGEVITY Since 1900, life expectancy has doubled. Today's women are not the same as yesterday's: they are liberated, daring and committed to the quest for a better life. For these women, confidence is essential, and their hair plays a key role in expressing their individuality and sense of youth.

After decades of in-depth scientific research, L'Oréal has succeeded in deciphering the complex science of hair aging. KÉRASTASE has identified five key signs of mature hair: dryness, dullness, frizz, loss of volume and density.

To visibly reduce these signs, KÉRASTASE presents Chronologiste
: an expert routine that translates advances in skin care science directly into hair care. This transformative approach delivers immediate results, revealing visibly denser, smoother and healthier hair overnight. Show less