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K18 Leave-In Hair Mask - Molecular Repair for Dry, Frizzy Hair | Reverse Damage in 4 Minutes

K18 Leave-In Hair Mask - Molecular Repair for Dry, Frizzy Hair | Reverse Damage in 4 Minutes

$53.95 USD
$78.99 USD $53.95 USD
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  • 4-Minute Molecular Hair Repair Treatment: A leave-in peptide hair mask designed to repair and reverse damage at the molecular level for stronger, smoother, more resilient hair in just 4 minutes.
  • How It Works: Patented K18PEPTIDE repairs hair at a molecular level to reverse damage from bleach, color, chemical services, and heat*. The biotech-developed peptide mimics and clicks into hair's keratin structure to reconnect polypeptide chains and disulfide bonds for strength along the length + width of hair.
  • Works on All Hair Types: Because our hair treatment works at the innermost layer of the hair rather than only targeting the outer cuticle like many deep conditioning hair masks, it's effective on all strands, even coily and curly hair.
  • Boosts Strength + Smoothness: Helps improve texture, manageability, and bounce with a highly concentrated hair cream formula with detangling and softening benefits. Most see results after 2-3 uses.
  • How to Use: Shampoo, skip conditioner, and apply 1-3 pumps of the leave in hair mask to clean, towel-dried hair. Let sit for 4 minutes, do not rinse, then style as usual. Use for 4-6 consecutive washes, then as needed.

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mask reverse damage
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K18 Molecular Repair Hair Mask

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k18 hair routine

  • The K18 Mask works as a treatment to reverse damage in 4 minutes. It’s powered by our biomimetic K18PEPTIDE to seamlessly fit in and reconnect broken polypeptide chains at the molecular level.

  • K18PEPTIDE is a biotech-developed peptide that mimics hair’s structure to reverse damage by reconnecting polypeptide chains and disulfide bonds broken during damage from bleach + color, chemical services, and heat.

  • Conditioner leaves a film that blocks our peptide from penetrating effectively. Once the 4-minute wait time is up, feel free to use a conditioner, a leave-in, or any type of product.

  • We like to keep our formulas minimal, only using the exact amount of ingredients needed to get the peptide where it needs to go. Here the alcohol serves as an agent to optimize the hair environment for the K18 Mask to work on a deeper level.

  • Most see results after 2-3 uses. The more damaged the hair, the more dramatic the results so it may vary depending on your hair type and level of damage.

Shop the K18 Collection

Molecular Repair Mask
Molecular Repair Oil
Damage Shield Shampoo
Detox Shampoo
Damage Shield Conditioner
AirWash Dry Shampoo
AstroLift Volume Spray
Customer Reviews
4.3 out of 5 stars 29,511
4.3 out of 5 stars 2,786
4.5 out of 5 stars 1,461
4.7 out of 5 stars 2,365
4.5 out of 5 stars 1,524
4.5 out of 5 stars 1,524
4.4 out of 5 stars 629
Price
$75.00 $65.00 $39.00 $39.00 $39.00 $48.00 $46.00
Molecular Repair
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Maintenance Routine
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Treatment Routine
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Used By Professionals
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At Home Use
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We do not accept returns or cancel for change of mind. We only offer returns for items that are faulty or damaged.

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