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K18REPAIR™ service

2-step PRO mist + mask service reverses damage in 4 minutes
Rated 4.8 out of 5
Based on 1742 reviews
Powered by the reparative K18PEPTIDE™, K18REPAIR™ service (K18 PRO mist + PRO mask) strengthens and fortifies hair before and reverses damage after salon services. Giving you the confidence to push transformations further on stronger, healthier hair.

Includes the professional molecular repair hair mist + the professional molecular repair hair mask, each engineered with the K18PEPTIDE™ and with specific formats and pH ranges for optimized use in all salon services.

Use both for maximum results—this service is clinically proven to repair damage from bleach* + color*, chemical services* + heat*


*Disclaimers


Repairs Damage Caused By

  • Bleach + Color
  • Heat
  • Chemical Services

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more to know


PRO mist

  • This leave-in, lightweight mist repairs existing damage to strengthen hair’s defenses and make it more resilient prior to salon services.
  • This PRO-exclusive product helps services apply and perform better, leaves hair healthier, and color lasts longer. Works in just 4 minutes in a convenient spray-on format.
  • The PRO mist is a simplified formula without added emollients to not interfere with chemical and color services. pH of 7.5-8.0 makes the treatment more efficient for optimal application pre-service.


PRO mask

  • This leave-in treatment mask repairs hair damage and restores hair to a healthy state after salon services. Powered by the K18PEPTIDE™ to reconnect broken polypeptide chains and disulfide bonds to renew strength and elasticity in just 4 minutes. This mask is clinically proven to repair damage from bleach* + color*, chemical services*, and heat* for immediate + lasting results.
  • Cream-based format helps soften, smooth, and condition hair. pH level of 5.0-6.0 helps close down the cuticle to seal in the K18PEPTIDE™ for lasting strength + elasticity.

*Disclaimers

key benefits

  • PRO mist fortifies hair pre-service, restoring up to 99% elasticity*.
  • PRO mask is clinically proven to reverse damage from bleach* + color*, chemical services*, and heat* after services for immediate + lasting results.
  • Restores strength, softness, smoothness, and bounce
  • Immediate + progressive results
  • Vegan, color-safe, cruelty-free

*Disclaimers

how to use

How to use with a chemical service:

  1. Section dry hair into 4 quadrants.
  2. Apply 6-10 sprays of K18 pro chelating hair complex per quadrant*.
  3. Wait 4 minutes after chelating** (do not rinse out), then 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, and level of damage.
  4. Wait 4 minutes (do not rinse out).
  5. If needed, dry the hair prior to applying lightener or color. Then perform your desired technique.
  6. Process your lightener or color as usual, then rinse and shampoo with K18 PEPTIDE PREP™ detox shampoo. Do not condition.
  7. 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.
  8. Wait 4 minutes (do not rinse), then apply 1-3 drops of K18 molecular repair hair oil to mid-lengths and ends.
  9. Wait 4 minutes, then proceed with cut or style as usual.
  10. 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.

How to use as part of a styling service or as part of a K18 molecular repair service standalone treatment:

  1. Section dry hair into 4 quadrants.
  2. Apply 6-10 sprays of K18 pro chelating hair complex per quadrant*.
  3. Wait 4 minutes after chelating**, then rinse and shampoo with K18 PEPTIDE PREP™ detox shampoo. Do not condition.
  4. Towel dry hair, then 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, and level of damage.
  5. Wait 4 minutes, then 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.
  6. Wait 4 minutes, then apply 1-3 drops of K18 molecular repair hair oil to mid-lengths and ends.
  7. Wait 4 minutes, then style as usual.
  8. Add an additional 1-3 drops of K18 molecular repair hair oil to dry hair as a finisher.

*For cases of extreme metal + mineral buildup, process up to 10 minutes, then proceed with the instructions.

**For best results, we recommend to use K18 chelator before every service. If not using K18 chelator, lightly dampen hair with water (do not saturate) before applying K18 PRO mist.

dos and don'ts

  • DO clarify before K18 if your client is a heavy product user (demineralize for mineral + metal buildup)
  • DO apply a generous amount of the PRO mist, Don’t overdo it with the mask—less is more
  • DO apply K18 mask on clean, damp hair (think about 65% wet)
  • 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 rinse it out
  • DON’T mix into your bleach or color
  • DON’T increase your bleach volume or alter your typical color formula

ingredients

PRO mist: Water (Aqua) (Eau), Alcohol Denat., Propylene Glycol, Polysorbate 20, sh-Oligopeptide-78 (K18PEPTIDE™), Hydrolyzed Wheat Protein, Hydrolyzed Wheat Starch, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Phenoxyethanol, Potassium Sorbate, Potassium Hydroxide, Fragrance (Parfum), Geraniol, Linalool, Hexyl Cinnamal, Benzyl Alcohol.

PRO mask: 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

Rated 4.8 out of 5
Based on 266 reviews
Weightless oil that strengthens, repairs damage + reduces frizz View Molecular Repair Hair Oil (WHOLESALE) product Log In / REGISTER

PEPTIDE PREP™ pro chelating hair complex

Rated 4.9 out of 5
Based on 17 reviews
No-mix, spray-on demineralizing treatment View PEPTIDE PREP™ PRO chelating hair complex product Log In / REGISTER

Description

Powered by the reparative K18PEPTIDE™, K18REPAIR™ service (K18 PRO mist + PRO mask) strengthens and fortifies hair before and reverses damage after salon services. Giving you the confidence to push transformations further on stronger, healthier hair.

Includes the professional molecular repair hair mist + the professional molecular repair hair mask, each engineered with the K18PEPTIDE™ and with specific formats and pH ranges for optimized use in all salon services.

Use both for maximum results—this service is clinically proven to repair damage from bleach* + color*, chemical services* + heat*


*Disclaimers


got questions?

Get started here

how does it work?

The K18REPAIR™ service works by reversing damage before and after services for stronger, more resilient hair. K18 PRO mist restores chemically damaged hair before services, making hair more resilient for salon transformations. Use before services for a stronger foundation and to help prevent damage during services. Follow with the K18 PRO mask to reverse damage done during services and to soften, smooth, and condition hair.

The K18PEPTIDE™ powering both formulas reverses damage from bleach* + color*, chemical services*, and heat* in 4 minutes. It works by reconnecting breaks in the hair fiber along both the length (keratin chains) and the width (disulfide bonds) for holistic hair renewal.

*Disclaimers

who is it for?

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

why do i mist hair with water before using the pro mist?

We recommend misting hair with water before using the PRO mist to swell the cuticle layers and open up the hair fiber, allowing for maximum penetration of the peptide-powered PRO mist into the innermost layers of hair. In the same way a damp sponge absorbs more water, damp hair absorbs K18PEPTIDE™.

If you’re using the PEPTIDE PREP™ pro chelating hair complex, there’s no need to mist the hair with water before using the PRO mist.

will using toner on top of k18 PRO mist affect my client’s color?

K18 PRO mist will not interfere with toner or final color. In clinical testing, we’ve found that color lasts longer + fades slower* when paired with mask usage at home.

*Disclaimers

is k18 considered a protein?

K18 PRO mist + mask are not protein treatments, our biomimetic peptide naturally mimics the amino acid sequences in keratin to rebuild bonds broken by bleach, color, and chemical service damage. If your clients are experiencing dry, brittle hair, use PEPTIDE PREP™ detox shampoo pre-K18 mask to remove buildup.
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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.

reviews

average rating 4.8 out of 5
Based on 1742 reviews
  • 5 Stars
    1592 Reviews
  • 4 Stars
    85 Reviews
  • 3 Stars
    37 Reviews
  • 2 Stars
    9 Reviews
  • 1 Star
    19 Reviews
96% of reviewers would recommend this product to a friend
Customer photos and videos
1742 Reviews
Reviewed by Renda T.
Verified Buyer
I recommend this product
Age
55 - 64
Hair Concern
  • Chemical damage
  • Heat damage
  • Color-care
  • Split-Ends
  • Extending time between washes
Hair Type
  • Thick/Coarse
My Results
  • Bouncy Hair
  • Stronger Hair
  • Less Breakage
  • Soft Touchable Hair
Rated 5 out of 5
Review posted

Rating on k18

The best product for my hair that I have ever used a little expensive

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K18Hair PRO

Thank you for your review!

Reviewed by Kayla L.
Verified Buyer
I recommend this product
Age
25 - 34
Hair Concern
  • Fragile/brittle hair
  • Frizz
  • Split-Ends
  • Chemical damage
  • Heat damage
Hair Type
  • Fine/Thin
My Results
  • Less Frizz
  • Smoother Hair
  • Less Breakage
  • Soft Touchable Hair
  • Visible Difference
Rated 5 out of 5
Review posted

Amazing

I never leave reviews but this product has saved my hair after I bleached it!

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K18Hair PRO

We appreciate your review Kayla!

Reviewed by Lara V.
Verified Buyer
I recommend this product
Age
45 - 54
Hair Concern
  • Color-care
  • Dryness
  • Extending time between washes
Hair Type
  • Medium Density
  • Grey Hair
My Results
  • Visible Difference
  • Stronger Hair
  • Defined Curl/Wave Pattern
Rated 5 out of 5
Review posted

Seriously good

I was skeptical about thus because I have tried other hair masks that do nothing. This stuff made my hair look and feel so healthy. A little goes a loooooong way!

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K18Hair PRO

Thank you Lara for your 5 star review!

Reviewed by frances d.
Verified Buyer
I recommend this product
Age
55 - 64
Hair Concern
  • Frizz
  • Chemical damage
  • Color-care
  • Dryness
  • Fragile/brittle hair
Hair Type
  • Thick/Coarse
  • Grey Hair
  • Curly/Coily
My Results
  • Less Frizz
  • Smoother Hair
  • Soft Touchable Hair
  • Shinier Hair
  • Less Breakage
Rated 5 out of 5
Review posted

Incredible!

This product, it's very hard to describe. It is absolutely amazing!

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K18Hair PRO

We appreciate your review Frances!

Reviewed by Blanca A.
Verified Buyer
I don't recommend this product
Age
45 - 54
Hair Concern
  • Frizz
Hair Type
  • Curly/Coily
Rated 1 out of 5
Review posted

Bad product

The worst product I've ever bought is not worth buying, too expensive for the size

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K18Hair PRO

We are sorry that you are not loving your K18. Reach out to us to troubleshoot to Hello@K18Hair.com.

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