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Leave-in molecular repair hair mask 50mL
full size leave-in molecular repair hair mask 50mL
1. patented peptide reverses damage 2. highly concentrated formula 3. for all hair types 4. works in 4 minutes 5. easy leave-in, no rise needed 6. vegan & cruelty-free
highly concentrated formula = a little goes a long way
Curly hair before using K18 mask and curly hair after using K18 mask.
full size leave in mask- start with 1 pump add more as needed. Mini size mask- start with 3 pumps add more as needed.
Clinically proven to reverse damage from: bleach + color, chemical services, and heat.
Where does K18 fit into your routine? 1. Shampoo (skip conditioner) 2. Towel dry 3. K18 4. wait for minutes 5. everything else
full size leave-in molecular repair hair mask- 50 does per bottle.
full size Molecular Repair Mask swatch 50 mL
4.9
Rated 4.9 out of 5 stars
1,775 Reviews

full-size leave-in molecular repair hair mask

Retail size of our 4-minute leave-in treatment to reverse hair damage

Professional Only

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Description

A retail-sized version of the K18 mask helps to maintain your client's hair strength and elasticity in-between salon appointments. This leave-in treatment mask for all hair types that reverses damage in 4 minutes. Patented peptide technology works to repair damage from bleach + color, chemical services, and heat* — restoring strength, softness, smoothness, and bounce to hair.

20+ billion TikTok views 🔥 

*Disclaimers

Repairs Damage Caused By

  • Bleach + Color
  • Heat
  • Chemical Services

Takes damage repair further – biomimetic peptide seamlessly fits in and reconnects 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 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 and with every service

  • K18PEPTIDE™ 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, and heat*.

  • pH-optimized (5.0-6.0) to help minimize cuticle swelling + put hair proteins in their most resilient state after salon service or shampoo

  • Cream format enables easy, lightweight application across all hair types, with detangling and softening benefits.

  • Vegan, color-safe, cruelty-free

  1. Shampoo, do not condition. Towel-dry thoroughly
  2. 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
  3. Let sit for 4 minutes. Do not rinse out
  4. Comb, add product + style as usual. Use for 4-6 washes post-salon service, then as needed
  • DO clarify before K18 if your client is 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
  • 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

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.

pairs well with
molecular repair hair oil
4.8
Rated 4.8 out of 5 stars
338 Reviews
Weightless oil that strengthens, repairs damage + reduces frizz Log In / REGISTER
PEPTIDE PREP™ detox shampoo
4.8
Rated 4.8 out of 5 stars
218 Reviews
Retail size of our color-safe, non-stripping clarifying shampoo formulated with the K18PEPTIDE™ Log In / REGISTER

Description

A retail-sized version of the K18 mask helps to maintain your client's hair strength and elasticity in-between salon appointments. This leave-in treatment mask for all hair types that reverses damage in 4 minutes. Patented peptide technology works to repair damage from bleach + color, chemical services, and heat* — restoring strength, softness, smoothness, and bounce to hair.

20+ billion TikTok views 🔥 

*Disclaimers

got questions?

Get started here
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.

healthier hair with every use

Reverse damage in 4 minutes with our breakthrough K18 molecular repair technology.
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how molecular repair compares

how K18 works

Traveling into the innermost layers of hair, our K18PEPTIDE™ renews strength along the width AND length of hair for lasting strength where it matters.

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 1,775 reviews
1,775 reviews
  • Diana M.
    Verified Buyer
    Mini Leave-In Molecular Repair Hair Mask 15 mL (WHOLESALE)
    Reviewing
    Mini Leave-In Molecular Repair Hair Mask 15 mL (WHOLESALE)
    I recommend this product
    Age 25 - 34
    Client Hair Concerns Heat Damage, Color Care, Chemical Damage, Split Ends, Dryness
    Client Hair Types Fine/Thin
    Client Results Stronger hair, Visible Difference, Less Breakage, Soft Touchable Hair, Smoother Hair
    Rated 5 out of 5 stars
    1 week ago
    Mini mask

    I think it is perfect for new clients who do not want to invest in a product that they do not know if they will like, the product leaves their hair instantly soft, looks and feels healthy in just 4 minutes

    K18Hair PRO
    1 week ago

    Yes, perfect investment for your clients! Thank you for sharing with them!

  • Christinamarie P.
    Verified Buyer
    Full-Size Leave-In Molecular Repair Hair Mask 50 mL (WHOLESALE)
    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, Frizz, Dryness
    Hair Type Thick/Coarse
    My Results Bouncy Hair, Stronger Hair, Visible Difference, Smoother Hair, Shinier Hair
    Rated 5 out of 5 stars
    2 weeks ago
    A+++

    I absolutely love this product!! You have to see it to believe it!

    K18Hair PRO
    2 weeks ago

    We appreciate your A+++ rating! Thank you Christina Marie!

  • Wanda E.
    Full-Size Leave-In Molecular Repair Hair Mask 50 mL (WHOLESALE)
    Reviewing
    Full-Size Leave-In Molecular Repair Hair Mask 50 mL (WHOLESALE)
    I recommend this product
    Age 65+
    Rated 5 out of 5 stars
    2 weeks ago
    Best things that hit the hair industry!!

    I am a professional stylist of hair/Salon owner, and have been in the industry fire close to 49 years. I am a salon owner in Columbia South Carolina, I went into Salon Cenrtric for one line of product that works similar to K18, and was redirected to, K18 by the store clerk.

    He explained to me that K18 was “the new kid on the block”, and a game changer. I got excited, and purchase the small sample kit for right under $60.

    Used the product as instructed on tithe majority of my clients that entire week, because I felt that if they had not had a K18 treatment they needed to get their hair had not been properly conditioned up until this point. Although I use professional products and emphasize on healthy hair, after I saw the results of what K18 does to the hair, I was sold, and went back to Salon Centric and purchased all back bar sizes of the line, and didn’t mind investing the approximately $550 in this product. I knew it would be worth it, and I knew it wouldn’t take long to get the return on my investment. As little as 1 month maybe sooner! This especially after we consult with our clients and explain what the K18 if for and what it will do to their hair. At this point I don’t see the purpose for using any of the shampoos and conditioners that I already have and been using on my clients. K18 is the answer to all of my clients hair care needs.

    A GAME CHANGER.

    I no longer have to guess and invest in other products not knowing and seeing it’s just a waste of time and money,…

    K18Hair PRO
    2 weeks ago

    Thank you Wanda! You are the real game changer! Don't forget to sign up to our Pro site K18HairPro.com.

  • Sandy S.
    Verified Buyer
    Full-Size Leave-In Molecular Repair Hair Mask 50 mL (WHOLESALE)
    Reviewing
    Full-Size Leave-In Molecular Repair Hair Mask 50 mL (WHOLESALE)
    I recommend this product
    Age 45 - 54
    Hair Concern Color-care, Heat damage, Dryness, Frizz
    Hair Type Medium Density
    My Results Less Frizz, Smoother Hair, Less Breakage, Stronger Hair, Soft Touchable Hair
    Rated 5 out of 5 stars
    3 weeks ago
    I Love this stuff

    I shampoo my hair and put in one squirt before blow drying. I do not have to use any product in my hair and it comes out so smooth. I love it!

    K18Hair PRO
    3 weeks ago

    Look at that color 😍! Thank you Sandy!

  • TANYA G.
    Verified Buyer
    Full-Size Leave-In Molecular Repair Hair Mask 50 mL (WHOLESALE)
    Reviewing
    Full-Size Leave-In Molecular Repair Hair Mask 50 mL (WHOLESALE)
    I recommend this product
    Age 25 - 34
    Hair Concern Chemical damage, Frizz, Fragile/brittle hair, Dryness, Split-Ends
    Hair Type Medium Density, Straight/Wavy
    My Results Visible Difference, Stronger Hair, Smoother Hair, Soft Touchable Hair, Less Breakage
    Rated 5 out of 5 stars
    3 weeks ago
    saved my hair

    I have finally grown my hair to hip length, but years of dyeing made the lower lengths & ends feel SUPER dry & damaged. After trimming ~1in. to get rid of split ends, I used K18 (after 6 consecutive washes, then once a week) & have gotten to a point where I feel confident I won't have to cut off more hair for it to keep feeling soft & healthy. This is one product I've had several empties of bc it really does work for me, especially since I want to continue dyeing my hair as it grows. If they had ever made the 5oz available for the public, I would be buying that without hesitation.

    K18Hair PRO
    3 weeks ago

    We will pass your request to our product development team. Thank you for your review!

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Pro Distribution Partners

Hair professionals can shop wholesale at the following distributors. Professionals within the US will also be able to shop directly from K18hair.com starting early 2021! Check back again soon for updates as we continue to expand globally.



Questions? Email us at hello@k18hair.com

Paramount Beauty Supply
USA
Salon Services Pro
USA
Salon Service Group
USA
Salonwax Pro
USA
Premier Beauty Supply
USA
Launching Soon
Ozdare - Australia
AU
 
Launching Soon
American Crew Ltd. - New Zealand
NZ
 
Launching Soon
PlayGround - Hong Kong
HK
 
Launching Soon
Session Map - Sweden
SE
 
Launching Soon
Cyprus
CY
 
Launching Soon
Belgium
BE
 
Coming Early 2021
Canada
CA
 
Coming Early 2021
Czech Republic
CZ
 
Coming Early 2021
Finland
FI
 
Coming Early 2021
France
FR
 
Coming Early 2021
Germany
DE
 
Coming Early 2021
Ireland
IR
 
Coming Early 2021
Italy
IT
 
Coming Early 2021
Netherlands
NL
 
Coming Early 2021
Norway
NO
 
Coming Early 2021
Singapore
SG
 
Coming Early 2021
Taiwan
TW
 
Coming Early 2021
UK
UK
 
Coming Early 2021
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