Kérastase Extensionalist hair mask - 200 ml for strengthening and lengthening

The product is a hair mask from the Estensioniste line of Kérastase with a capacity of 200 ml (model 7423), designed to strengthen weak and damaged hair and help the ends resist breakage. It features a nourishing formula used as a intensive treatment after shampooing to smooth strands, improve texture, and add healthy shine without weighing down the hair. Specifications General specifications Brand: Kérastase Product line: Résistance – Extentioniste (Estensioniste) Product type: Repairing hair mask Size: 200 ml Technical specifications Model: 7423 Purpose: Strengthen ends and reduce breakage Formula: Nourishing concentrated formula for frequent use Expected result: Smoother texture and healthy shine How to use: Used after shampoo as a short leave-in mask before rinsing Suitable for: Weak, damaged, and long hair Advantages and benefits Main benefits The mask provides concentrated nourishment that helps strengthen fibers and reduce the appearance of split ends, contributing to maintaining hair length and increasing softness and shine without weighing it down. Ideal for: Weak and prone-to-breakage hair, those seeking support for growing hair while reducing breakage, long hair needing intensive end care. How to use Steps: Wash hair with shampoo, then gently towel dry until damp. Apply an appropriate amount of the mask to the ends and length of the hair, avoiding the scalp if necessary. Leave for 3–5 minutes or as needed, then rinse thoroughly. Tips: No need to use a large amount; a little is enough to nourish the ends. For better results, use twice a week or according to hair condition. Can be followed by a heat protection routine before styling to maintain the result.