Full-Size Leave-In Molecular Repair Hair Mask
Full-Size Leave-In Molecular Repair Hair Mask
🎁Daily: The first 100 customers to place an order receive a free product!
📢 100% Unconditional Refund, 180-Day Money-Back Guarantee
✨ 4-Minute Fast Repair: Repairs hair damage in just 4 minutes.
🧪 Molecular Recovery: Deeply restores strength and elasticity broken by bleach, color, and heat.
🚿 No-Rinse Ease: Highly concentrated leave-in formula—no rinsing needed for lasting results.
🌿 Pure & Universal: Vegan, cruelty-free, and engineered to deliver bouncy hair for all hair types.
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Full-Size Leave-In Molecular Repair Hair Mask
Soft, strong, bouncy hair for everyone. Repair damage for hair like new* in 4 minutes.
how to use molecular repair mask
1. Shampoo, do not condition. Towel-dry thoroughly.
2. Apply 1-3 pumps based on your length and density, starting at the ends and working up towards the roots.
3. Let sit for 4 minutes. Do not rinse out.
4. Comb, add styling product + style as usual. Use for 4-6 washes, then as needed.
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how to use
how to use
- Shampoo, do not condition. Towel-dry thoroughly.
- Apply 1-3 pumps of K18 leave-in molecular repair hair mask based on your length and density, starting at the ends and working up towards the roots.
- Let sit for 4 minutes. Do not rinse out.
- Comb, add product + style as usual. Use for 4-6 washes post-salon service, then as needed.
more to know
more to know
- K18 is a biotech-developed peptide that mimics hair's structure to reverse damage by reconnecting polypeptide chains and disulfide bonds broken during bleaching, color and chemical services + heat*.
- pH-optimized (5.0-6.0) to help minimize cuticle swelling + put hair proteins in their most resilient state.
- Cream format enables easy, lightweight application across all hair types, with detangling and softening benefits.
- Vegan, color-safe, cruelty-free.
key benefits
key benefits
Takes damage repair further – reconnects both polypeptide chains (and as a result, also reconnects disulfide bonds) for strength along the length + width of the hair - offering comprehensive, lasting damage repair.
Restores hair from even extreme damage - by working at the innermost layer of the hair, core strength and elasticity are renewed for strong, smooth, bouncy hair.
Delivers immediate and lasting results – hair is repaired from the first use and lasts past your next wash, for ongoing reparative benefits.
Simplified repair - convenient, leave-in formula works in just 4 minutes, with no extra rinse required.
Works on all hair types – because K18PEPTIDE™ works on a molecular level (where all hair is the same), this product is effective on all hair types.
dos and don'ts
dos and don'ts
- DO clarify before K18 if you’re a heavy product user (demineralize for mineral + metal buildup).
- DO apply on clean, damp hair.
- DO wait the full 4 minutes before combing or styling.
- DO add whatever styling products you love after the 4 minutes.
- DO use for 4-6 shampoos consecutively for progressive results.
- DON'T use conditioner before applying K18 Mask (you can apply after the 4 min but most find they don’t need it).
- DON'T overdo it—less is more.
- DON'T rinse it out.
ingredients
ingredients
Water (Aqua) (Eau), Alcohol Denat., Propylene Glycol, Cetearyl Alcohol, Dicaprylyl Ether, Cetyl Esters, Behentrimonium Chloride, Polysorbate 20,sh-Oligopeptide-78 (K18PEPTIDE™), Hydrolyzed Wheat Protein, Hydrolyzed Wheat Starch, Isopropyl Alcohol, Tocopherol, Phenoxyethanol, Potassium Sorbate, Citric Acid, Fragrance (Parfum), Geraniol, Linalool, Hexyl Cinnamal, Benzyl Alcohol.
powered by K18PEPTIDE
Biomimetic peptide clicks into hair’s keratin structure—the source of core strength—for soft, shiny, bouncy results that won’t wash away.
Testimonials
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Saved my fine curly bleached hair!! Can’t go without K18
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I can’t live without my k18 mask!! It’s made a huge difference in the look and feel of my hair, I’ve been coloring for years and this stuff saves me from breakage.
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My hairdresser always educates and guides me for my hair care and never steers me wrong. Even with heat protection, I fried my hair pretty good, not to mention I moved from CA to CO and it’s very dry here and water is hard. I knew I would need more than three treatments as you will see in the picture, BUT it’s definitely noticeable. I’m still not putting heat to my hair to give it complete restoration. However, this is worth the money because it DEFINITELY is working. Thank you K18!
got questions?
how does the k18 mask work?
how does the k18 mask work?
The K18 mask works as a treatment to reverse damage in 4 minutes. It’s powered by our biomimeticK18PEPTIDE™to seamlessly fit in and reconnect broken polypeptide chains at the molecular level. As a result, disulfide bonds are also reconnected for reinforced strength along the length + width of hair—offering comprehensive, lasting, and progressive repair.
why skip conditioner?
why skip conditioner?
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.
i noticed there’s alcohol in the formula, isn’t that bad for you?
i noticed there’s alcohol in the formula, isn’t that bad for you?
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. Our unique blend of 3 alcohols functions to open the hair cuticle so the K18 can penetrate the innermost layer of hair, reaching the broken polypeptide chains (keratin chains).
when should i expect to see results?
when should i expect to see results?
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.