- Kérastase Première repairing hair mask, designed for medium to thick damaged hair - Advanced formula with citric acid and glycine that nourishes, repairs, and rebuilds the hair structure - Its rich and creamy texture penetrates the hair fiber, strengthening and filling the hair surface - Reduces breakage and helps restore the hair's natural strength and vitality - Protects against damage caused by water calcium and other external agents - Visible results: stronger, softer, and more resilient hair from the first application - Directions for use: apply to washed, towel-dried hair, leave on for 5 minutes, and rinse thoroughly - Recommended for regular use, twice a week, to maximize hair repair and protection