| Period After Opening (PAO) | 12M |
| Size | Standard Size |
| Ingredients | Glycerin |
| Hair Type | All Hair Types |
| Styling Effect | Hair Repair |
| Brand | Kérastase |
| Type | Serum |
| Department | Unisex |
| Unit Type | fl oz |
| Volume | 3.4 fl oz |
| Formulation | Liquid |
| Country Of Origin | Spain |
Kérastase Chronologiste Overnight Youth Serum 90ml Revitalizing Night Hair Serum. This Kérastase Chronologiste Overnight Youth Serum 3.04oz / 90ml works overnight to nourish, hydrate, and revitalize hair while you sleep. Infused with hyaluronic acid, it helps restore softness, strength, and shine for a smoother, more youthful look. This lightweight, leave-in formula absorbs easily without weighing hair down, leaving it refreshed, silky, and salon-quality by morning. 🤩✨🩷✨🩷✨🩷✨🩷✨