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Hair like new. This leave-in mask heals and strengthens hair with lightweight moisturizing benefits to detangle and keep hair smooth and soft, without weighing it down. For best results, use for the first 4-6 consecutive washes following a service, and then every 3-4 washes as needed to maintain hair strength.

K18 Leave In Molecular Repair Hair Mask 15ml

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    • Shampoo, do not condition. Towel dry thoroughly.
    • Begin with 1 pump of K18 Mask and add more as needed depending on the length, thickness, and condition. Work evenly into hair, one pump at a time, from ends to roots.
    • Let sit for 4 minutes to activate.
    • Do NOT rinse out. Style as usual.


    • Like-new hair repaired from the inside out
    • Healed damage from bleach, color, chemical services, heat, and mechanical styling
    • Restored strength, softness, smoothness, and bounce
    • Reduced breakage, split ends, and color fade
    • pH balance of 5.0-6.0
    • Doesn’t wash away with shampoo, leaving lasting results
    • 91% original strength*
    • 94% original elasticity*



    • Vegan
    • Color Safe
    • Cruelty-Free
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