Kérastase Resistance Bain Extentioniste – Length Strengthening Shampoo for Breakage-Prone Hair (8.5 oz)

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Support long, healthy hair with Kérastase Resistance Bain Extentioniste. This aromatic strengthening shampoo gently purifies the scalp while reinforcing hair from root to tip. Formulated for weakened, breakage-prone strands, it boosts elasticity and shine to help hair grow stronger and healthier over time.

Ideal as the first step in a length-focused haircare routine—leaving hair clean, fortified, and ready for deep conditioning.