- Kérastase Première Hair Treatment Set designed to repair damaged hair - Includes three sample-size products: Concentré Décalcifiant Ultra-Réparateur, Bain Décalcifiant Rénovateur, and Masque Filler Réparateur - Advanced formula with citric acid and glycine that removes excess calcium and repairs the hair fiber - Restores up to 99% of the hair's original structure by reconnecting broken keratin chains - Reduces breakage, strengthens, adds shine and softness to the hair - 3-step usage protocol: apply pre-shampoo, then shampoo, and finish with the mask - Ideal for very damaged hair that requires intensive repair and strengthening - Visible results: hair becomes more resilient, soft, and healthy after each use