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Pro Peptide Starter Kit
the K18REPAIR™ service reverses damage in just 4 minutes
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.
Feel what's possible with K18REPAIR™
Pro Peptide Starter Kit
K18REPAIR™ vs other repair treatments
strong, resilient hair at every step
make over $27,000 potential profit per year
4.9
Rated 4.9 out of 5 stars
2,089 Reviews

pro peptide starter kit

Limited-edition set to reverse hair damage

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Description

Get started with the K18REPAIR™ service. 

Powered by the reparative K18PEPTIDE™, the 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

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.

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

  • 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

  • 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

PRO mist Ingredients: 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 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

Get started with the K18REPAIR™ service. 

Powered by the reparative K18PEPTIDE™, the 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
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
K18 is engineered to work with every hair type, in every service, and with every routine.
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.
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
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.

healthier hair with every use

Reverse damage in 4 minutes with our breakthrough K18 molecular repair technology.
new + improved K18REPAIR™ certification
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how molecular repair compares
how to use K18REPAIR™ in the salon

Watch PROs repair damage before + after services for healthier hair through every transformation.

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See how K18 unlocks our community's expression
4.9
Rated 4.9 out of 5 stars
Based on 2,089 reviews
2,089 reviews
  • Brooke Z.
    Verified Buyer
    Reviewing
    Full-Size Leave-In Molecular Repair Hair Mask 50 mL (WHOLESALE)
    I recommend this product
    Age 25 - 34
    Hair Concern Heat damage, Chemical damage, Frizz, Split-Ends
    Hair Type Medium Density
    My Results Less Breakage
    Rated 5 out of 5 stars
    1 week ago
    Love the leave in conditioner!

    Product is great!

    K18Hair PRO
    1 week ago

    Thank you for your review!

  • Pamela P.
    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, Heat damage, Fragile/brittle hair, Color-care, Split-Ends
    Hair Type Medium Density
    My Results Less Breakage, Stronger Hair, Visible Difference, Cleaner, fresher hair, Smoother Hair
    Rated 5 out of 5 stars
    2 weeks ago
    Really works

    There’s so many products that say that will help with chemical damaged hair, my hair is blonde and to be blonde it can really damage your hair. I noticed that my hear is getting healthy less breakage softer. Don’t forget to use a heat protector after.

    K18Hair PRO
    1 week ago

    Thank you for your review!

  • Mariah H.
    Verified Buyer
    Reviewing
    Mini Leave-In Molecular Repair Hair Mask 15 mL (WHOLESALE)
    I recommend this product
    Age 18 - 24
    Client Hair Concerns Chemical Damage, Dryness, Frizz
    Client Hair Types Medium Density
    Client Results Less Breakage, Defined Curl/Wave Pattern, Soft Touchable Hair, Stronger hair, Bouncy Hair
    Rated 4 out of 5 stars
    2 weeks ago
    Definitely helps!

    My hair was chemically damaged and a large piece broke off. I’ve used this twice since then (so far) and it’s helped me not lose a lot more hair, and I’ve noticed less tangles. My hair has been so much softer and my curls are happier too. I’m definitely going to keep using this product. I only gave 4 stars because I do still have more breakage happening and I had to cut off quite a bit

    K18Hair PRO
    2 weeks ago

    K18 is a progressive treatment. It will get better with each application!

  • Jennifer 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, Frizz, Fragile/brittle hair, Dryness
    Hair Type Thick/Coarse, Grey Hair, Curly/Coily
    My Results Less Frizz, Visible Difference, Less Breakage, Stronger Hair, Defined Curl/Wave Pattern
    Rated 5 out of 5 stars
    2 weeks ago
    LOVE THIS

    I can’t truly express how much I absolutely love this product!! My hair can actually air dry after using it and it’s not frizzy!! I no longer need all sorts of products to make it not frizzy! One and done!!!

    K18Hair PRO
    2 weeks ago

    Thank you Jennifer! We love your review!

  • Krystal P.
    Verified Buyer
    Reviewing
    Full-Size Leave-In Molecular Repair Hair Mask 50 mL (WHOLESALE)
    Age 35 - 44
    Hair Concern Chemical damage, Heat damage, Frizz, Fragile/brittle hair, Split-Ends
    Hair Type Straight/Wavy, Fine/Thin
    My Results Less Frizz, Visible Difference, Smoother Hair
    Rated 3 out of 5 stars
    1 month ago
    Does it do what it claims? Meh…

    So I have used this product for 6 washes, exactly as directed. My hair had been damaged by bleach. The improvement I saw was temporary. The first two uses, it really helped smooth my ends. However, that was temporary and I now am back to square one. I wish it had lived up to the hype. Great leave in, but it’s not correcting any damage and it’s not as effective as it was at first.

    K18Hair PRO
    1 month ago

    Depending on how damaged your hair is you may need to repeat the 6 consecutive washes. If you would love a personalized recommendation we can better assist you via email at Hello@K18Hair.com.

Pro Distribution Partners

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