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Client Mask Pack
Client Mask Pack
Client Mask Pack
Client Mask Pack
Client Mask Pack
Client Mask Pack
4.9
Rated 4.9 out of 5 stars
2,033 Reviews

client mask pack

4-minute leave-in treatment to reverse hair damage

Professional Only

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Description

Send every client home with a trial-sized molecular repair hair mask gift. This convenient 5-pack allows clients to continue hair repair between appointments for better service results at their next visit. 


Repairs Damage Caused By

  • Bleach + Color
  • Heat
  • Chemical Services

IN the shower

  1. Shampoo, do not condition.

OUT of the shower

  1. Towel dry thoroughly.
  2. Begin with 1 pump of the K18 Mask and add more as needed depending on the length, thickness, and condition.
  3. Apply all over, maximum recommended usage is 3 dime-sized amounts.
  4. Wait 4 minutes. Do not rinse out.
  5. Then comb, add styling product + style as usual.
  6. Use for 4-6 washes, then swap to maintenance mode and use as needed.
  • Leave-in treatment mask for all hair types reverses damage in 4 minutes. Helps maintain your client's hair strength and elasticity in-between appointments.

  • Patented K18PEPTIDE™ technology works to repair damage from lightener* + color*, chemical services*, and heat**—restoring strength, softness, smoothness, and bounce to hair.


*Disclaimers

  • DO use a clarifying shampoo if you’re a heavy product or dry shampoo user to remove buildup and help our peptide penetrate and get where it needs to go.
  • DO wait the full 4 minutes before styling or applying other product
  • DO use every 4-6 shampoos consecutively to see and feel ongoing results
  • DON’T condition your hair before application (trust us, most won’t need it after K18, if you still need, add a leave-in after the 4-minute window is up post-application)
  • DON’T overuse, a little goes a long way.
  • DON’T rinse out. This is a leave-in, so you know, leave it in!

One use of leave-in molecular repair hair mask delivers:

  • Healthier hair in 4 minutes*
  • Damage repair from lightener**, color**, chemical services**, and heat***
  • Immediate and progressive results****
  • Vegan, color-safe, cruelty-free

*Disclaimers

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.

Description

Send every client home with a trial-sized molecular repair hair mask gift. This convenient 5-pack allows clients to continue hair repair between appointments for better service results at their next visit. 


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K18 is engineered to work with every hair type, in every service, and with every routine.
Traditional conditioners leave a film on hair 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 styling product.
Water in damp hair swells the cuticle (the outside layer of hair) to open the gates for our biomimetic peptide to enter and travel to the innermost layers of hair. If the gates aren’t open, the product will stay on the surface—giving you mostly superficial repair. By applying on damp hair, you can use less, waste less, and still get the best results.
Think of the K18 mask as a highly concentrated treatment. It restores hair’s strength + elasticity in the innermost layers of hair, instead of traditional conditioners that coat the outside of hair. After the 4-minute wait time post-K18 mask, feel free to add a leave-in for a boost of conditioning if needed.
Yes, both formulas are the same. The PRO mask is conveniently sized for PRO use.
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.

learn more on our blog
feel what's possible with K18
See how K18 unlocks our community's expression
4.9
Rated 4.9 out of 5 stars
Based on 2,033 reviews
2,033 reviews
  • Karen
    Verified Buyer
    Reviewing
    Full-Size Leave-In Molecular Repair Hair Mask 50 mL (WHOLESALE)
    I recommend this product
    Age 65+
    Hair Concern Dryness, Extending time between washes
    Hair Type Grey Hair, Curly/Coily
    My Results Less Frizz, Bouncy Hair, Defined Curl/Wave Pattern, Soft Touchable Hair, Visible Difference
    Rated 5 out of 5 stars
    1 week ago
    was skeptical but this is pretty amazing

    Honestly, I thought people were suckers for buying so expensive a product. But I kept looking at it. And yes, I forked out $29 for a half ounce to check it out.

    I usually style my hair dripping wet with gels like Innersense I Create Curl Memory, so having to towel dry my hair stumped me for a while. Because without enough water that gel would leave my hair a hot stiff mess. And then not using conditioner? Heresy!

    But I tried it. I can detangle my hair using a moisturizing shampoo so that wasn't a problem. I towel dried my hair - gasp! - and applied 3-4 pumps of the Hair Mask. My hair immediately felt great; I left it in for a few minutes and then combed it through. When I applied gel to my hair, I added water to distribute it equally throughout my hair. That seemed to work. And when my hair was dry it was clear it didn't disrupt the repair mask.

    But it's in the days after application that this mask really began to make a difference. I like to get at least 5 days out of my hairstyle before shampooing or even wetting it again, Hence the gel. After 5 days, The tight curls loosen up and usually get much frizzier. If I want decent hair after a swim, I have to touch it up in some way shape or form. But with the hair mask, MY curls were looser but still formed. My hair felt soft, smooth and hydrated. And there was so much less frizz, I just had to touch up the edges — this after swimming under a silicone swim cap which can wreck a style. So I thought about getting another trial…

    K18Hair PRO
    1 week ago

    We're so thrilled to hear about your incredible transformation with the Full-Size Leave-In Molecular Repair Hair Mask, Karen! It's amazing how you went from being skeptical to experiencing such wonderful results - your curls staying formed, soft, and hydrated even after swimming is truly remarkable. Thank you for sharing your detailed experience and showing how the molecular repair really does make a lasting difference in your hair's health and manageability!

  • Emily S.
    Verified Buyer
    Reviewing
    Full-Size Leave-In Molecular Repair Hair Mask 50 mL (WHOLESALE)
    I recommend this product
    Age 25 - 34
    Hair Concern Chemical damage, Frizz
    Hair Type Medium Density
    My Results Less Frizz, Visible Difference, Less Breakage, Stronger Hair, Smoother Hair
    Rated 5 out of 5 stars
    1 month ago
    This worked after just two uses!

    I took a before photo to ask Chat GBT what product to use and it recommended K18. I have used it twice on damp hair per the instructions and already my hair looks much better! The second photo is my after picture.

    K18Hair PRO
    1 month ago

    Wow, we love to hear it! So happy K18 is already making such a visible difference. Thanks for sharing your before and after journey with us, Emily!

  • Esther Y.
    Verified Buyer
    Reviewing
    Full-Size Leave-In Molecular Repair Hair Mask 50 mL (WHOLESALE)
    I recommend this product
    Age 35 - 44
    Hair Concern Chemical damage, Fragile/brittle hair, Color-care, Dryness
    Rated 5 out of 5 stars
    2 months ago
    Hair repair

    My bleached hair was so brittle and dry. K18 hair mask saved it after 2-3 uses

    K18Hair PRO
    1 month ago

    It's amazing how quickly it can work its magic on damaged hair. Thanks for the amazing 5-star review!

  • Hailey B.
    Verified Buyer
    Reviewing
    Full-Size Leave-In Molecular Repair Hair Mask 50 mL (WHOLESALE)
    I recommend this product
    Age 25 - 34
    Hair Concern Heat damage, Color-care, Split-Ends, Dryness
    Hair Type Medium Density
    My Results Smoother Hair, Soft Touchable Hair, Shinier Hair, Less Breakage, Visible Difference
    Rated 5 out of 5 stars
    2 months ago
    I love this stuff!

    I have been using this for years and will forever keep using it. I recommend to everyone!

    K18Hair PRO
    2 months ago

    Your loyalty and recommendation to everyone means the world to us. Thanks for the amazing review!

  • Delilah P.
    Verified Reviewer
    Reviewing
    Professional Molecular Repair Mask 150 mL (WHOLESALE)
    I recommend this product
    Age 45 - 54
    Client Hair Concerns Chemical Damage, Split Ends, Dryness, Heat Damage, Frizz
    Client Hair Types Fine/Thin, Grey Hair, Curly/Coily, Thick/Coarse, Straight/Wavy
    Client Results Less Frizz, Bouncy Hair, Visible Difference, Stronger hair, Less Breakage
    Rated 5 out of 5 stars
    3 months ago
    The best restorative medicine for hair! The leave in mask

    I’m in love with the line K18 , as a professional hair stylist I’ve tried many different types of treatments and this one for me is a winner! I’m all about theory /certification to really understand the main core principles/use of a product.

    Hair feels silky, clean and healthy! Highly recommend K18 to keep that crown shiny.

    K18Hair PRO
    3 months ago

    Delilah, we're absolutely thrilled to hear from a professional hair stylist who truly understands the science behind K18! It means the world to us that after trying so many different treatments, K18 stands out as a winner for you.

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