Product Details

The cult‑favorite K18 Leave‑In Molecular Repair Hair Mask is a breakthrough treatment powered by patented K18Peptide™ technology that reverses damage from bleach, color, heat, and chemical services in just 4 minutes. This full‑size 50 ml bottle delivers salon‑grade results at home — restoring strength, softness, and elasticity without weighing hair down. No rinse required. Details: • Brand: K18 Biomimetic Hairscience • Product: Leave‑In Molecular Repair Hair Mask • Size: 50 ml / 1.7 fl oz (Full Size) • Condition: New / sealed • Type: Leave‑in treatment • Technology: K18Peptide™ molecular repair • Made in USA 🌿 Key Benefits • Repairs keratin chains for lasting strength • Restores smoothness and bounce • Works in 4 minutes — no rinse needed • Safe for color‑treated and chemically processed hair Retail value: $75-$85