Chronologiste Hair Mask
A revitalizing and nourishing hair mask designed to give dull or brittle hair long-lasting moisture, softness, and radiant shine.
A luxury treatment mask for people who want deeper nourishment, more shine, and a softer, more revived feel.
For people who have invested in the Chronologiste shampoo and overnight serum, the mask is the natural addition that completes the system — the weekly intensive treatment that sits between daily cleansing and overnight repair.
After shampooing on weekly treatment wash days — apply to lengths and ends, leave for 3–5 minutes, then rinse before applying the Overnight Youth Serum as a leave-in.
People who want their weekly haircare ritual to feel like a spa treatment — a rich, luxurious mask that leaves hair visibly softer, shinier, and more revived, not just detangled.
Very fine hair that is easily weighed down — reduce leave-on time and apply only to ends. The richness is calibrated for dry and aging hair that genuinely needs deep conditioning.
If hair feels heavy or coated, reduce the leave-on time, focus only on the ends, or alternate with a lighter conditioner.
- The Chronologiste Bain Régénérant Shampoo as the first step before the mask
- The Chronologiste Overnight Youth Serum applied after rinsing the mask for a full age-support routine on treatment days
- The Genesis Serum Fortifiant applied to the scalp after rinsing for combined scalp-and-lengths age support
Best For
- Dull hair
- Brittle hair
- Dry lengths
- Aging hair
- Weekly moisture treatments
- Luxury repair-feel routines
How to Use
Apply to cleansed lengths and ends after shampooing. Leave on for 3–5 minutes, then rinse thoroughly. Use 1–2 times per week.
Key Ingredients
Draws water to the skin and helps lock it in, making skin appear plumper, smoother, and more hydrated.
Abyssine is primarily known for its soothing and skin-sensitization-reducing properties — clinical studies have shown it can help reduce skin reactivity and calm irritation-related redness. In haircare, it functions as a conditioning and soothing active, supporting the scalp environment and hair fibre softness. It is particularly used in prestige and anti-aging formulations where premium marine ingredients are part of the formulation story. In the Kérastase Chronologiste line, it contributes to the luxury anti-aging haircare narrative alongside Hyaluronic Acid and Vitamin E.
Vitamin E neutralizes free radicals in the skin's lipid layers, supports barrier function, helps reduce transepidermal water loss, and works synergistically with vitamin C — with ferulic acid further amplifying this combination. In formulations, it also stabilizes other active ingredients and extends shelf life.
Fragrance has no skincare function — it is added purely for sensory appeal and brand experience. Some fragrant ingredients (like linalool, limonene, and eugenol) are known sensitizers that can cause contact dermatitis in sensitive individuals over repeated exposure.
Ingredients to Note
May be a concern for some skin types. Tap to learn more.
Full Ingredient List
About This Product
The Kérastase Chronologiste Hair Mask is the weekly intensive treatment step in the Chronologiste age-support system — sitting above the conditioner in richness and depth of conditioning. Where the Bain Régénérant Shampoo begins the age-support process at cleansing, the mask delivers a deeper, more sustained infusion of the Chronologiste key actives — Hyaluronic Acid, Abyssine, and Vitamin E — into the hair fibre. Applied to dry or brittle aging hair that has lost moisture, softness, and shine over time, the mask leaves hair feeling visibly revived, smoother, and more luminous after rinsing. The Chronologiste mask positions itself as the "treatment within the treatment" — more than a standard conditioner, but shorter and more targeted than a full overnight serum. It bridges the daily cleansing-and-conditioning routine and the leave-in Overnight Youth Serum, creating a complete three-stage age-support system.