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mini leave-in molecular repair hair mask

Mini retail size of our 4-minute leave-in treatment to reverse hair damage
Rated 4.9 out of 5
Based on 762 reviews

A mini version of the K18 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 & heat—restoring strength, softness, smoothness, and bounce to hair.

11+ billion TikTok views 🔥

Repairs Damage Caused By

  • Bleach + Color Bleach + Color
  • Heat Heat
  • Chemical Services Chemical Services

Professional Only

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more to know

The K18PEPTIDE™ works at the innermost layer of hair, reconnecting polypeptide chains and disulfide bonds broken during bleaching and chemical services. By addressing these damage sites at the innermost layer of hair, core strength and elasticity are renewed for strong, smooth, bouncy hair—even after the most extreme damage done in the salon.

Damage is ongoing

Send the K18 retail sizes home with your client to keep hair health going, make services last longer, and maintain hair health in between appointments + the K18 PRO service.

key benefits

  • Powered by the patented K18PEPTIDE™, engineered over 10 years in a biotech lab to work on the molecular level to rebuild hair from the inside out in just 4 minutes.
  • Because the K18PEPTIDE™ works at the molecular level, it works on every single hair type
  • Clinically proven to reverse hair damage from: Bleach + Color, Chemical Services, Heat
  • Restores strength, softness, smoothness, and bounce
  • Immediate + progressive results
  • Vegan, color-safe, cruelty-free
  • With just one salon treatment using the K18 PRO service (PRO mist + PRO mask), hair is restored up to:

91% original strength*
94% original elasticity*

*Results observed in a clinical study while using mist and mask as part of a bleaching treatment. Results may vary depending on hair type, quality, and history.

how to use

  1. Shampoo, do not condition.
  2. Towel-dry thoroughly.
  3. Begin with 3 pumps of K18 leave-in molecular repair hair mask, only add more as needed depending on length, thickness, and condition. Apply all over, one pump at a time, maximum dosage is 9 pumps.
  4. Let sit for 4 minutes. Do not rinse out.
  5. Then comb + style as usual (fine to add heat protectant or styling product now).
  6. Use for the first 4-6 washes, then as needed.

how to optimize K18

  • 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

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.

Description

A mini version of the K18 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 & heat—restoring strength, softness, smoothness, and bounce to hair.

11+ billion TikTok views 🔥

backed by science,
loved by stylists

Our community of stylists and colorists believe K18 is liberating hair—no matter the hair type or generation.

“K18 allows me to go everywhere I want to go with my color work and the end result is my guests get to be bright and shiny and healthy.”

– Christine Thompson, Director of Color at Spoke & Weal
pros using K18

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.

got questions?

Get started here

how does the K18 mask work?

K18 mask works as a treatment to reverse damage in 4 minutes. How it works is a lot like makeup vs. skincare. Concealers (i.e. most hair products) temporarily cover up a problem. K18 works like retinol, highly concentrated, working on a deeper level to renew that base health so you can wear less concealer in the future. Pretty cool right?

what is the K18PEPTIDE™?

Our biomimetic peptide mimics hair’s natural structure to seamlessly fit in and reconnect broken keratin chains responsible for hair’s core strength and elasticity. As a result of this reconnection it also addresses cleaved disulfide bonds for connection along the Y-axis of hair AND the x-axis or width of hair.

Why skip conditioner?

Conditioner leaves a film on the cuticle that blocks our peptide from penetrating into the innermost layers 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?

We like to keep our formulas minimal, only using the exact ingredients needed to get the peptide where it needs to go. Our unique blend of 3 alcohols functions to open up the hair cuticle so the K18PEPTIDE™ can penetrate the innermost layer of hair, reaching the broken polypeptide chains (keratin chains). Here the alcohol serves as an agent to optimize the hair environment for K18 mask to work on a deeper level and give your client the best results.

When should my client expect to see results?

Most see results after 2-3 uses. The more damaged the hair, the more dramatic the results so results may vary depending on your client’s hair type + level of damage.
reviews
average rating 4.9 out of 5
Based on 762 reviews
  • 5 Stars
    720 Reviews
  • 4 Stars
    24 Reviews
  • 3 Stars
    9 Reviews
  • 2 Stars
    4 Reviews
  • 1 Star
    5 Reviews
98% of reviewers would recommend this product to a friend
Customer photos and videos
762 Reviews
Reviewed by Vanessa C.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Amazing!!

I used this before introducing it to my clients, I love it! I have straight, flat hair and it did not weigh it down at all. I used it after the detox shampoo, usually I wash every other day but I was able to go an extra day before washing again. One of my clients sent me a text after leaving the salon, she loved how it made her hair feel!

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K18Hair PRO

Love the text message your client sent you! Thank you for your awesome review Vanessa!

Reviewed by Brandy S.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Love

I am obsessed now!!!! Definitely love it and I don't think ill ever be without it again.

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K18Hair PRO

Thank you for your review Brandy.

Reviewed by Kamie D.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Love k18

This is the best product I have ever used!!!! Love it

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K18Hair PRO

Thank you for your review Kamie.

Reviewed by Jennifer M.
Verified Buyer
I don't recommend this product
Rated 1 out of 5
Review posted

So disappointed

I really wanted to love this. Even gave it 3 tries. It leaves my hair tangled and dry, and feeling like straw. I followed the directions, but I just hate it

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K18Hair PRO

Thank you for your review Jennifer. We want you to have the best possible experience with K18 if you're open to it please reach out to us at hello@k18hair.com.

Reviewed by REBECCA L.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

The best out there!

So, I'm a cosmetologist.. I always like to test products on myself before I use it on clients.. Me, ,being a stylist I do a LOT to my hair, aka I torture it by changing it up constantly, so there was damage.. After using K-18, I can definitely without a doubt say that this product has healed my delicate strands like nothing I've ever used.. I will proudly use this on my clients.. Why? We ALL want healthy hair!

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K18Hair PRO

Thank you for your review Rebecca.

Calculating…

based on your client + service

DOSAGE CALCULATION

pre-service

Apply a generous amount to damp hair, section by section

post-service

3 pumps
throughout the hair

How to use

  • Prep hair by lightly misting with water.
  • Apply K18 Mist section by section.
  • Wait 4 minutes. DO NOT rinse. (This is a good time to mix or prepare for your Lightening Service.)
  • Apply Lightener directly on top of K18 Mist. (Dry hair if needed prior to application.)
  • Process as usual.
  • Shampoo hair. Skip the conditioner.
  • Towel dry thoroughly.
  • Apply K18 Mask.
  • Leave for 4 minutes before styling. DO NOT rinse out.
  • If toning, apply toner / gloss on top of K18 Mask. Process toner / gloss as required. Shampoo and rinse. Towel dry thoroughly. Follow with secondary application of K18 Mask for 4 minutes.
  • Style as usual.

client recommendation

At-Home Treatment

Leave in Molecular Hair Repair Mask

2 pumps

Use for the first 4-6 washes, then every 3-4 washes for ongoing damage repair.

optimize K18

skip the conditioner

Conditioners coat hair making it harder for our K18Peptide™ to effectively penetrate strands and get into the inner layers of hair. We like to skip it so the peptide can get right to damage sites without interruption. If strands need a little more love, you can add a leave-in conditioner once the initial 4-minute wait period is over.

clarify first

Excessive product or mineral buildup on hair can prevent our K18Peptide™ from effectively penetrating strands. If hair is heavy with buildup, start with a clarifying treatment before using K18 to remove residue that may block our peptide from getting where it needs to go.

continue use

Damage is ongoing, so clients' use of K18 should be too. This progressive treatment makes hair healthier with each use. Continue their hair renewal at home by using K18 for the first 4-6 washes, then every 3-4 washes to maintain the integrity of damaged hair.

less is more

Our Pro Mask is highly concentrated, meaning a little goes a long way. Don’t oversaturate hair and refer to our dosage chart to find the optimal amount for each client’s hair type and service.

more is more

When using the Pro Mist, the more the merrier to reset damage before a chemical service. Use pre-service for a healthy canvas by applying a generous amount of the Pro Mist to damp hair, section by section.

made for all

K18 Pro Mist + Mask are compatible with all products and all hair types regardless of texture, generation, or level of damage.

optimize K18

clarify first

Excessive product or mineral buildup on hair can prevent our K18Peptide™ from effectively penetrating strands. If hair is heavy with buildup, start with a clarifying treatment before using K18 to remove residue that may block our peptide from getting where it needs to go.

more is more

When using the Pro Mist, the more the merrier to reset damage before a chemical service. Use pre-service for a healthy canvas by applying a generous amount of the Pro Mist to damp hair, section by section.

made for all

K18 Pro Mist + Mask are compatible with all products and all hair types regardless of texture, generation, or level of damage.

optimize K18

clarify first

Excessive product or mineral buildup on hair can prevent our K18Peptide™ from effectively penetrating strands. If hair is heavy with buildup, start with a clarifying treatment before using K18 to remove residue that may block our peptide from getting where it needs to go.

continue use

Damage is ongoing, so clients' use of K18 should be too. This progressive treatment makes hair healthier with each use. Continue their hair renewal at home by using K18 for the first 4-6 washes, then every 3-4 washes to maintain the integrity of damaged hair.

more is more

When using the Pro Mist, the more the merrier to reset damage before a chemical service. Use pre-service for a healthy canvas by applying a generous amount of the Pro Mist to damp hair, section by section.

made for all

K18 Pro Mist + Mask are compatible with all products and all hair types regardless of texture, generation, or level of damage.

optimize K18

skip the conditioner

Conditioners coat hair making it harder for our K18Peptide™ to effectively penetrate strands and get into the inner layers of hair. We like to skip it so the peptide can get right to damage sites without interruption. If strands need a little more love, you can add a leave-in conditioner once the initial 4-minute wait period is over.

clarify first

Excessive product or mineral buildup on hair can prevent our K18Peptide™ from effectively penetrating strands. If hair is heavy with buildup, start with a clarifying treatment before using K18 to remove residue that may block our peptide from getting where it needs to go.

continue use

Damage is ongoing, so clients' use of K18 should be too. This progressive treatment makes hair healthier with each use. Continue their hair renewal at home by using K18 for the first 4-6 washes, then every 3-4 washes to maintain the integrity of damaged hair.

less is more

Our Pro Mask is highly concentrated, meaning a little goes a long way. Don’t oversaturate hair and refer to our dosage chart to find the optimal amount for each client’s hair type and service.

made for all

K18 Pro Mist + Mask are compatible with all products and all hair types regardless of texture, generation, or level of damage.

K18 Pro Dosage Calculator ×
×

Send this to your client!

Your K18 Hair at-home treatment recommendation is of leave-in molecular repair hair mask for the first 4-6 washes, then every 3-4 washes for ongoing damage repair. For more information on the product and how to use, visit k18hair.com!

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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