Free Standard Shipping on $125+ Orders
free returns. buy with confidence
ASTROLIFT™ HAS LANDED   SHOP NOW .𖥔 ݁ ˖
mini size leave-in molecular repair hair mask 15mL
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
Before and after using k18 professional leave in hair mask and professional hair mist.
Before and after using k18 professional leave in hair mask and professional hair mist.
Before and after using k18 professional leave in hair mask and professional hair mist.
Before and after using k18 professional leave in hair mask and professional hair mist.
Biotech-powered K18PEPTIDE(TM) reverses hair damage in 4 minutes. Straight hair after bleach without K18and straight hair after bleach with K18.
highly concentrated formula = a little goes a long way
Before and after image using detox, mask, conditioner, and oil
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
4.9
Rated 4.9 out of 5 stars
1,859 Reviews

mini leave-in molecular repair hair mask

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

Professional Only

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

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 3-9 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
383 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
238 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.
shopping with us has its perks

exclusive tools

Get access to monthly live training, professional education, and business guides.

free shipping on $125+ orders

Shop K18 at professional wholesale pricing (no order minimums here).

real support

We have K18 experts on standby to answer allll your product and order questions.

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 1,859 reviews
1,859 reviews
  • amanda s.
    Verified Buyer
    Reviewing
    Full-Size Leave-In Molecular Repair Hair Mask 50 mL (WHOLESALE)
    I recommend this product
    Age 18 - 24
    Hair Concern Dryness, Split-Ends, Frizz
    Hair Type Fine/Thin, Curly/Coily
    My Results Less Frizz, Stronger Hair, Less Breakage, Soft Touchable Hair
    Rated 4 out of 5 stars
    Yesterday
    The smell

    I love the smell so much! I’m glad that I bought this and waiting to see how this makes my hair look

  • Gergana G.
    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, Split-Ends, Oily hair/scalp
    Hair Type Fine/Thin
    My Results Visible Difference, Stronger Hair, Less Breakage, Soft Touchable Hair, Shinier Hair
    Rated 5 out of 5 stars
    3 days ago
    Love it!

    I absolutely love the mask! It’s definitely worth the hype—it has completely transformed my hair, making it so much healthier, even after years of bleaching.

    K18Hair PRO
    1 hour ago

    Beautiful hair! Thank you for your review!

  • raiyan s.
    Verified Buyer
    Reviewing
    Full-Size Leave-In Molecular Repair Hair Mask 50 mL (WHOLESALE)
    I recommend this product
    Age 18 - 24
    Hair Concern Split-Ends, Frizz
    Hair Type Curly/Coily
    My Results Smoother Hair, Defined Curl/Wave Pattern, Less Breakage, Less Frizz, Visible Difference
    Rated 5 out of 5 stars
    1 week ago
    Love!!

    This product is now apart of my daily routine! Now that I have it, I can’t go without it!

    K18Hair PRO
    6 days ago

    Thank you Raiyan! Happy to hear we are a part of a healthy hair routine!

  • Traci-Leigh O.
    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, Color-care, Oily hair/scalp, Split-Ends, Extending time between washes
    Hair Type Straight/Wavy, Medium Density, Grey Hair
    My Results Less Frizz, Soft Touchable Hair, Shinier Hair, Visible Difference, Smoother Hair
    Rated 5 out of 5 stars
    1 week ago
    Love this

    I’m a hairdresser and never heard of this. I decided to treat myself and go to a salon to get my hair done. I’ve used Pravana Wild Orchid for years and it always fades out in about 2-3 weeks with only washing my hair 1-2 times a week. The hairdresser used this treatment and I am in love!! I’m going on almost 5 weeks and my hair hasn’t faded a bit!! It’s healthier looking and I don’t need as much conditioner either!! I strongly recommend this!!

    K18Hair PRO
    1 week ago

    So vibrant! Thank you for your 5-star review!

  • Maria Rosa V.
    Verified Buyer
    Reviewing
    Professional Molecular Repair Mask 150 mL (WHOLESALE)
    I recommend this product
    Age 55 - 64
    Client Hair Concerns Chemical Damage, Color Care, Frizz, Dryness, Split Ends
    Client Hair Types Medium Density, Curly/Coily
    Client Results Visible Difference, Smoother Hair, Defined Curl/Wave Pattern, Stronger hair, Less Breakage
    Rated 5 out of 5 stars
    2 weeks ago
    Visible results on repair

    The results of the repair are amazing!!

    K18Hair PRO
    1 week ago

    Thank you for your review Maria!

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
thank you for visiting!

You are now being redirected to an official partner website for this region where you can shop K18 Hair.

Changed your mind? Go back.

00:00
Blackfire Tracking
subscribe + save 15%
healthy hair on your schedule
Pick your K18 + how often you want to replen.
We’ll send you a heads up before every delivery.
You’re in charge. Change the way you pay, skip a shipment, or cancel anytime.