K18 Leave-In Molecular Hair Mask is a professional-grade treatment designed to repair and restore severely damaged hair. Formulated with K18LEAVE-IN, a patented peptide complex, this mask penetrates deep into the hair structure to reverse damage caused by bleaching, coloring, chemical treatments, and heat styling.

This lightweight, leave-in formula works without rinsing, making it perfect for daily use or intensive repair. It strengthens weakened strands, restores elasticity, and improves overall hair health while maintaining shine and softness. Ideal for color-treated, bleached, or chemically processed hair that needs intensive restoration.

Apply to damp or dry hair, focusing on mid-lengths and ends. Use as often as needed for optimal results. Safe for all hair types and compatible with other K18 products for a complete hair repair system.