Kérastase Resistance, Strengthening Serum With Heat Protection, For Very Damaged Hair

Kérastase Resistance Strength Serum targets very damaged hair with strengthening and heat-protective properties. The lightweight, leave-in texture smooths fibers and helps reduce breakage while priming strands for styling. Suited to heavily treated or fragile hair, it layers easily under other products for a targeted strengthening boost before heat styling.