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Client Mask Pack
Client Mask Pack
Client Mask Pack
Client Mask Pack
Client Mask Pack
Client Mask Pack
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
2,268 Reviews

client mask pack

4-minute leave-in treatment to reverse hair damage

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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

    • more to know
      • 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

    • key benefits

      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

    • how to use

      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.

    • do's + don'ts
      • 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!
    • 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.

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Client Mask Pack
Client Mask Pack
Client Mask Pack
Client Mask Pack
Client Mask Pack
Client Mask Pack
Client Mask Pack
Client Mask Pack
Client Mask Pack
Client Mask Pack
Client Mask Pack
Client Mask Pack
got questions?

Get started here.

who is it for?

K18 is engineered to work with every hair type, in every service, and with every routine.

why skip conditioner?

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.

does K18 mask replace conditioner?

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.

Is the K18 pro mask and take-home mask the same?

Yes, both formulas are the same. The PRO mask is conveniently sized for PRO use.

soft, strong, bouncy hair for everyone

Repair damage for hair like new* in 4 minutes.

before afer
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after
"I have fallen in LOVE with this product and i haven’t had a single client disappointed"
- Sydne S.
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"I was so excited to try this stuff and then when I saw results instantly I knew I was in LOVE!!!"
- Shannon O.
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"Hands down the best product I’ve used to repair damaged hair. I live by this product and my clients love it too!"
- Nicole C.
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"This product is a game changer, especially for blondes! I have seen some of the most damaged hair become like new again! It’s a miracle! Ty K18!"
- Lacey P.
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"I absolutely love this product on my clients and myself!!! As a hairdresser, I’ve tried all those bond builders and what not and yes they are great but what sets k-18 apart from these other bond builders is that the technology behind it really goes deep into the hair. I have had many of my clients who had so many compliments about how healthy their hair looks and feels."
- Justina M.
before afer
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"This stuff stomps the yard! I cannot even fathom coloring or lightening hair, without K18. It’s in my prices and no one complains because their hair feels and looks amazing. The client below tried at home lightening and came in to have it fixed."
- Ryan H.
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"I’m currently in cosmetology school so of course all my family and friends want me to do their hair! Ive started using K18 on anyone i have to bleach and its like a little miracle!"
- Nicole M.
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.

Explore the Science EXPLORE THE SCIENCE
see K18REPAIR™ in action
lightener / color
1. Section dry hair into 4 quadrants.

2. Apply a minimum of 10 full sprays of K18 professional molecular repair hair mist to each quadrant, increasing up to 20 sprays per quadrant as needed, depending on client’s length, density, or level of damage.

3. Wait 4 minutes (do not rinse out).

4. If needed, dry the hair prior to applying lightener or color. Then perform your desired technique.

5. Process your lightener or color as usual, then rinse and shampoo with K18 PEPTIDE PREP™ detox shampoo. Do not condition.

6. Apply 1-3 pumps of K18 professional molecular repair hair mask based on your client’s length and density, starting at the ends and working up towards the roots.

7. Wait 4 minutes (do not rinse), then apply 1-3 drops of K18 molecular repair hair oil to mid-lengths and ends.

8. Wait 4 minutes, then proceed with cut or style as usual.

9. Add an additional 1-3 drops of K18 molecular repair hair oil to dry hair as a finisher.

Please see the “K18 + toning or glossing” section for more information on toning with K18.
learn more on our blog
The Top K18 Mask FAQs
The Top K18 Mask FAQs
answering your most-asked questions.
about The Top K18 Mask FAQs
How much leave-in mask should you use?
/ products
How much leave-in mask should you use?
A handy dosage guide for every hair type, density, and length.
about How much leave-in mask should you use?
How to Build Your Clients’ Take-Home Routines with K18 Mask + DAMAGE SHIELD
/ business
How to Build Your Clients’ Take-Home Routines with K18 Mask + DAMAGE SHIELD
A PRO’s top tips for building your clients’ take-home routines
about How to Build Your Clients’ Take-Home Routines with K18 Mask + DAMAGE SHIELD
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4.9
Rated 4.9 out of 5 stars
Based on 2,268 reviews
97%would recommend these products
Customers Talked About
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2,268 reviews
  • Hazzel J.
    Verified Buyer
    Reviewing
    Full-Size Leave-In Molecular Repair Hair Mask 50 mL (WHOLESALE)
    I recommend this product
    Age 18 - 24
    Hair Concern Chemical damage, Color-care, Frizz, Dryness, Split-Ends
    Hair Type Thick/Coarse
    My Results Less Frizz, Bouncy Hair, Visible Difference, Stronger Hair, Smoother Hair
    Rated 5 out of 5 stars
    1 hour ago
    Amazing for bleached hair

    I absolutely love this product! My hairdresser recommended it to me, and I’m so glad I tried it. My hair is bleached and has been through a lot of processing, and K18 is honestly the only product I’ve tried that has made a noticeable difference. My hair feels so much healthier, softer, and more manageable after using it. A little goes a long way, too. Definitely worth it for damaged or bleached hair. I’ll absolutely keep using this! ❤️

    Was this helpful?
    K18Hair PRO
    5 minutes ago

    We're so thrilled your hairdresser recommended us! 💕 We love hearing that the Molecular Repair Mask is making such a noticeable difference for your bleached hair. Thank you for the love! ✨

  • Rocio R. U.
    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, Dryness, Split-Ends, Fragile/brittle hair, Extending time between washes
    Hair Type Medium Density
    My Results Less Frizz, Visible Difference, Stronger Hair, Less Breakage, Shinier Hair
    Rated 5 out of 5 stars
    4 days ago
    It works wonders

    I relax my hair so it is pretty damaged, I have used this 3 times and I already feel a difference. My hair feels stronger, it leaves your hair shiny and soft.

    Was this helpful?
    K18Hair PRO
    4 days ago

    Thank you so much for sharing, Rocio! We're thrilled to hear the Molecular Repair Hair Mask is making such a positive difference for your hair. We love knowing it's leaving your strands feeling stronger, shinier, and softer! 💕

  • Jill D.
    Verified Buyer
    Reviewing
    Full-Size Leave-In Molecular Repair Hair Mask 50 mL (WHOLESALE)
    I recommend this product
    Age 55 - 64
    Hair Concern Heat damage, Chemical damage, Frizz, Fragile/brittle hair
    Hair Type Thick/Coarse, Straight/Wavy
    My Results Visible Difference, Soft Touchable Hair, Less Breakage, Less Frizz, Stronger Hair
    Rated 5 out of 5 stars
    1 week ago
    Love this product!

    I have long, thick, bleached blonde hair. My best friend is a hair stylist, so I always use professional products and have always had beautiful blonde hair! However, I made the mistake of straightening it without a heat protector or leave in, because I was in a hurry one day and I literally fried my hair, because the straightener was on 450*! So I was told by my best friend to use the K18 hair repair mask, but I was hesitant because of the price of the small full size bottle. However ,I trust my hair stylist, so I purchased it. The first time using it I could feel and see a huge difference and I couldn’t believe it? I did have to use 4 pumps because of the length and thickness of my hair, but after 6 times using it in a row and after having a stem cell treatment done, my hair is back to Beautiful! I will definitely continue to incorporate this product into my weekly hair maintenance routine.

    Was this helpful?
    K18Hair PRO
    1 week ago

    Thank you so much for your review, Jill! 🤍 We're thrilled the Molecular Repair Hair Mask has helped restore your hair to beautiful after heat damage. We're so grateful for your trust and so happy you're making it part of your routine!

  • Yuliya B.
    Verified Buyer
    Reviewing
    Full-Size Leave-In Molecular Repair Hair Mask 50 mL (WHOLESALE)
    I recommend this product
    Age 45 - 54
    Hair Concern Color-care
    Hair Type Fine/Thin
    My Results Visible Difference, Less Breakage
    Rated 5 out of 5 stars
    2 weeks ago
    My Hair Feels So Much Healthier

    I’ve been using this hair mask for a while, and I’m really happy with the results. My hair has become more resilient and much less prone to breakage. It feels softer, smoother, and healthier, with a beautiful shine. My ends look more nourished, and my hair is much easier to brush after every use. I definitely recommend this mask, especially for damaged or color-treated hair. I’ll definitely buy it again!

    Was this helpful?
    K18Hair PRO
    2 weeks ago

    Thank you so much for your wonderful review! 🤍 We're thrilled to hear the Molecular Repair Hair Mask is delivering such amazing results for your hair. We truly appreciate you being part of the K18 community!

  • Deb M.
    Verified Buyer
    Reviewing
    Full-Size Leave-In Molecular Repair Hair Mask 50 mL (WHOLESALE)
    I recommend this product
    Age 45 - 54
    Hair Concern Chemical damage, Heat damage, Color-care, Dryness, Split-Ends
    Hair Type Fine/Thin
    My Results Less Frizz, Smoother Hair
    Rated 5 out of 5 stars
    3 weeks ago
    Magical!

    Love everything about this product

    Was this helpful?
    K18Hair PRO
    3 weeks ago

    Thank you so much for your amazing review! 💛 We're thrilled to hear you're loving our Full-Size Leave-In Molecular Repair Hair Mask. Your support means the world to us! ✨

*Disclaimers