Kerastase Specifique Hydra-Apaisant Hair Mask is specially formulated for sensitive scalps and delicate hair. This soothing treatment rebalances your scalp's natural pH while deeply hydrating strands from root to tip. Enriched with calming botanicals, it reduces irritation and inflammation, leaving your hair soft, manageable, and visibly healthier. Perfect for those with reactive or easily irritated scalps seeking gentle, effective care. Apply to damp hair, leave for 5-10 minutes, then rinse thoroughly for best results.