Promotional price valid from 10/11/2026 to 12/11/2026.
Limited to existing stock.
Kérastase Chronologiste Overnight Youth Serum 90ml is a leave-in overnight serum that helps reduce visible signs of hair aging.
Kérastase Chronologiste Overnight Youth Serum 90ml is an overnight serum designed to reduce visible signs of hair aging. While sleeping, the formula works against dryness, dullness, frizz, and loss of volume and thickness, delivering intensive care through the night. Two key ingredients drive the formula's action. First, Pro-Xylane™ is a molecule recognized for its anti-aging action that revives hair fibers with moisture and helps enhance hair density by influencing the follicular microenvironment. Alongside it, Ochrophyta algae brings deep hydration and offers protective properties against external environmental stressors, contributing to sustained hair health over time. Together, these two ingredients address the multiple signs of hair aging, so hair appears less dry, less dull, and more voluminous with continued use.
The serum absorbs quickly and blends instantly into the hair, leaving an impeccable finish. Furthermore, the formula also carries the signature Chronologiste fragrance, a sensual and revitalizing scent, making it a pleasure to apply.
Apply Kérastase Chronologiste Overnight Youth Serum 90ml to dry or damp hair before bed. Dispense one pump into the palms of your hands, distribute it evenly between the palms, and spread it uniformly through the lengths and ends of the hair. Do not rinse out in the morning.
In this section we answer frequently asked questions about Kérastase Chronologiste Overnight Youth Serum 90ml
Progressive hair loss, also called chronic hair loss, has genetic and hormonal causes. It happens slowly, with hair getting gradually finer and less dense over the years, usually in specific areas.
Reactive hair loss can happen in response to a specific event, such as stress, illness, childbirth, a nutritional deficiency, certain medications, or a change of season. It tends to come on suddenly and all over the head, but hair usually grows back once the cause has passed.
When in doubt, consult your healthcare professional.