Ingredients

K18 Leave-In Molecular Repair Mask's key ingredient is the biotech-developed K18Peptide™ (sh-Oligopeptide-78), which repairs broken keratin chains and disulfide bonds
from chemical/heat damage by mimicking hair's natural structure,
working alongside other ingredients like water, alcohol denat.,
propylene glycol, and conditioning agents in a pH-optimized formula to restore strength, softness, and elasticity without rinsing.Key Ingredients & Their Roles:

K18Peptide™ (sh-Oligopeptide-78):
The star ingredient, this unique peptide reconnects broken polypeptide
chains and disulfide bonds, repairing damage at a molecular level.
Alcohol Denat. & Propylene Glycol: These function as delivery agents, opening the hair cuticle to allow the peptide to penetrate deeply into the hair shaft.
Cetearyl Alcohol, Dicaprylyl Ether, Cetyl Esters: These provide conditioning, softening, and detangling benefits, making hair feel smooth and manageable.
Behentrimonium Chloride & Polysorbate 20: Conditioning and emulsifying agents that help distribute the product and improve hair feel.
Hydrolyzed Wheat Protein & Starch: Help to strengthen and moisturize the hair.

How It Works (No Rinse Needed):

Shampoo & Towel Dry: Wash with shampoo (skip conditioner) and towel-dry thoroughly.
Apply: Distribute a small amount evenly from roots to ends.
Wait 4 Minutes: Allow it to activate and work its magic.
Style: Do not rinse; style as usual, adding other products if desired.

This
leave-in treatment is designed to be a core part of your routine,
providing progressive repair with each use, notes K18 Hair Australia and
K18 Hair Ireland

Shipping & Return

Once we receive your return, we’ll process your refund within 5-7 business days. Refunds will be credited back to your original payment method. For more details on how to start a return, visit our Returns page or contact our support team—we’re here to help! Shop confidently knowing we’ve got you covered.

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K18 Repair mask without rinsing Leave-In Molecular Repair

805.00

Shipping calculated at checkout.

Leave-in molecular repair hair mask K18 repairs even the most extreme damage, returning hair to its younger, healthier state.

This leave-in mask penetrates to the innermost layers of the hair, increasing the benefits of other traditional repair products.

Formulated with K18 Peptide, it is sized to fit and reconnect broken keratin chains, renewing hair with strength, smoothness and elasticity.

Its pH is between 5.0-6.0, without rinsing, which helps to close the cuticle.

In just 4 minutes it repairs damage caused by bleaching, color, chemicals and heat.

Get results from the first use.

Does not contain sodium chloride, artificial colors, phthalates, parabens, silicones, sulfates.

Not suitable for curly method.

How to use:

Wash with shampoo, do not apply conditioner. Dry well with the towel.

Start with 1 pump of K18 Mask and add more as needed based on length, thickness, and condition. Distribute evenly through hair, one pump at a time, from roots to ends.

Leave on for 4 minutes to activate.

DO NOT clarify.

Comb in the usual way.

If you use heavy products that contain oils, silicones, and film formers, it may be necessary to apply a clarifying, purifying, or detoxifying shampoo prior to application, instead of a regular shampoo, to remove buildup from these products for best results. This is due to the accumulation of products that make them act as a barrier.

size: 5 ml

5 ml 15 ml 50 ml

Ingredients

K18Peptide™ (sh-Oligopeptide-78):
The star ingredient, this unique peptide reconnects broken polypeptide
chains and disulfide bonds, repairing damage at a molecular level.
Alcohol Denat. & Propylene Glycol: These function as delivery agents, opening the hair cuticle to allow the peptide to penetrate deeply into the hair shaft.
Cetearyl Alcohol, Dicaprylyl Ether, Cetyl Esters: These provide conditioning, softening, and detangling benefits, making hair feel smooth and manageable.
Behentrimonium Chloride & Polysorbate 20: Conditioning and emulsifying agents that help distribute the product and improve hair feel.
Hydrolyzed Wheat Protein & Starch: Help to strengthen and moisturize the hair.

How It Works (No Rinse Needed):

Shampoo & Towel Dry: Wash with shampoo (skip conditioner) and towel-dry thoroughly.
Apply: Distribute a small amount evenly from roots to ends.
Wait 4 Minutes: Allow it to activate and work its magic.
Style: Do not rinse; style as usual, adding other products if desired.

This
leave-in treatment is designed to be a core part of your routine,
providing progressive repair with each use, notes K18 Hair Australia and
K18 Hair Ireland

Shipping & Return

HOW TO USE