K18 Leave In Mask 15ml
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The K18 Leave-In Molecular Repair Hair Mask is a 4-minute, leave-in treatment designed to clinically reverse damage from bleach, color, chemical services, and heat. It features a patented bioactive peptide (K18PEPTIDE™) that penetrates deep into the hair's inner layers to reconnect broken keratin chains, restoring strength, softness, and bounce.