Kérastase - Chronologiste Overnight Youth Serum

🧴 Description
Kérastase Chronologiste Overnight Youth Serum is a luxurious overnight leave-in hair serum designed to address the visible signs of hair aging while you sleep. Infused with Pro-Xylane™ and Ochrophyta Algae extract, its advanced formula helps deeply hydrate, smooth and improve the appearance of hair from roots to ends.

The serum targets 5 visible signs of hair aging: dryness, dullness, frizz, lack of volume and lack of thickness. Its lightweight, quick-break texture melts instantly into the hair without leaving it feeling heavy or greasy.

The formula helps create hair that looks fuller, smoother, softer and healthier, while also providing heat protection up to 450°F / 232°C during heat styling.

With just one pump, the serum is easily distributed through the lengths and ends. Leave it on overnight and wake up to hair with a smoother, more polished and revitalized appearance, enveloped in the signature luxurious Chronologiste fragrance.

✅ Benefits

• Provides intensive overnight hair care
• Deeply hydrates dry-looking hair
• Smooths and softens the hair fiber
• Helps reduce the appearance of frizz
• Revives dull-looking hair and enhances shine
• Helps create a fuller-looking appearance
• Helps improve the appearance of hair lacking thickness
• Leaves hair smoother, softer and more manageable
• Helps hair look healthier and revitalized
• Provides heat protection up to 450°F / 232°C
• Leave-in formula with no rinsing required
• Suitable for use on damp or dry hair

🔬 Key Active Ingredients

• Pro-Xylane™ (Hydroxypropyl Tetrahydropyrantriol) – an advanced skincare-inspired active known for its anti-aging action, helping improve the appearance and feel of the hair.
• Ochrophyta Algae / Macrocystis Pyrifera Extract – algae extract used for its revitalizing and conditioning properties.
• Glycerin – helps attract and retain moisture, supporting hydrated-looking hair.
• Dimethicone – a conditioning silicone that helps smooth the hair surface, improve softness and enhance shine.

💡 How to Use

1. Apply 1 pump to dry or damp hair before bedtime.
2. Spread the serum between your hands and distribute evenly through the lengths and ends.
3. Do not rinse.
4. If applied to damp hair, blow-dry and heat-style as desired.
5. For best results, use as part of the Kérastase Chronologiste haircare routine.

🧪 Ingredients (INCI)
Aqua / Water / Eau, Dimethicone, Glycerin, Isopropyl Myristate, Phenoxyethanol, Polyacrylamide, C13-14 Isoalkane, Laureth-7, Benzyl Salicylate, Hexyl Cinnamal, Benzyl Alcohol, Linalool, Tetramethyl Acetyloctahydronaphthalenes, Carvone, Citrus Aurantium Peel Oil, Limonene, Pogostemon Cablin Oil, Citronellol, Linalyl Acetate, Geraniol, Hydroxycitronellal, Macrocystis Pyrifera Extract / Kelp Extract, Hydroxypropyl Tetrahydropyrantriol, Benzaldehyde, Geranyl Acetate, Coumarin, Citric Acid, Trimethylbenzenepropanol, Rose Ketones, Propylene Glycol, Beta-Caryophyllene, Potassium Sorbate, Sodium Benzoate, Parfum / Fragrance.