4.9

Rated 4.9 out of 5 stars

2,015 Reviews

client mask pack

4-minute leave-in treatment to reverse hair damage

Solo profesional

Acceso / REGISTRO

Descripción

Regale a cada cliente una mascarilla capilar reparadora molecular de muestra. Este práctico paquete de 5 unidades permite continuar con la reparación capilar entre citas para obtener mejores resultados en su próxima visita.

Repairs Damage Caused By

Bleach + Color
Heat
Chemical Services

how to use

IN the shower

Shampoo, do not condition.

OUT of the shower

Towel dry thoroughly.
Begin with 1 pump of the K18 Mask and add more as needed depending on the length, thickness, and condition.
Apply all over, maximum recommended usage is 3 dime-sized amounts.
Wait 4 minutes. Do not rinse out.
Then comb, add styling product + style as usual.
Use for 4-6 washes, then swap to maintenance mode and use as needed.

more to know

Leave-in treatment mask for all hair types reverses damage in 4 minutes. Helps maintain your client's hair strength and elasticity in-between appointments.
Patented K18PEPTIDE™ technology works to repair damage from lightener* + color*, chemical services*, and heat**—restoring strength, softness, smoothness, and bounce to hair.

*Disclaimers

do's + don'ts

DO use a clarifying shampoo if you’re a heavy product or dry shampoo user to remove buildup and help our peptide penetrate and get where it needs to go.
DO wait the full 4 minutes before styling or applying other product
DO use every 4-6 shampoos consecutively to see and feel ongoing results

DON’T condition your hair before application (trust us, most won’t need it after K18, if you still need, add a leave-in after the 4-minute window is up post-application)
DON’T overuse, a little goes a long way.
DON’T rinse out. This is a leave-in, so you know, leave it in!

key benefits

One use of leave-in molecular repair hair mask delivers:

Healthier hair in 4 minutes*
Damage repair from lightener**, color**, chemical services**, and heat***
Immediate and progressive results****
Vegan, color-safe, cruelty-free

*Disclaimers

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.

Descripción

got questions?

Get started here

who is it for?

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

why skip conditioner?

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.

why do I use K18 mask on towel-dried hair?

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.

does K18 mask replace conditioner?

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.

Is the K18 pro mask and take-home mask the same?

Yes, both formulas are the same. The PRO mask is conveniently sized for PRO use.

soft, strong, bouncy hair for everyone

Repair damage for hair like new* in 4 minutes.

before

after

"I have fallen in LOVE with this product and i haven’t had a single client disappointed"
-Sydne S.

before

after

"I was so excited to try this stuff and then when I saw results instantly I knew I was in LOVE!!!"
- Shannon O.

before

after

"Hands down the best product I’ve used to repair damaged hair. I live by this product and my clients love it too!"
- Nicole C.

before

after

"This product is a game changer, especially for blondes! I have seen some of the most damaged hair become like new again! It’s a miracle! Ty K18!"
- Lacey P.

before

after

"I absolutely love this product on my clients and myself!!! As a hairdresser, I’ve tried all those bond builders and what not and yes they are great but what sets k-18 apart from these other bond builders is that the technology behind it really goes deep into the hair. I have had many of my clients who had so many compliments about how healthy their hair looks and feels."
- Justina M.

before

after

"This stuff stomps the yard! I cannot even fathom coloring or lightening hair, without K18. It’s in my prices and no one complains because their hair feels and looks amazing. The client below tried at home lightening and came in to have it fixed."
- Ryan H.

before

after

"I’m currently in cosmetology school so of course all my family and friends want me to do their hair! Ive started using K18 on anyone i have to bleach and its like a little miracle!"
- Nicole M.

Biomimetic peptide clicks into hair’s keratin structure—the source of core strength—for soft, shiny, bouncy results that won’t wash away.

learn more

how to use K18

lightener / color

1. Section dry hair into 4 quadrants.

2. 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, or level of damage.

3. Wait 4 minutes (do not rinse out).

4. If needed, dry the hair prior to applying lightener or color. Then perform your desired technique.

5. Process your lightener or color as usual, then rinse and shampoo with K18 PEPTIDE PREP™ detox shampoo. Do not condition.

6. 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.

7. Wait 4 minutes (do not rinse), then apply 1-3 drops of K18 molecular repair hair oil to mid-lengths and ends.

8. Wait 4 minutes, then proceed with cut or style as usual.

9. 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.

learn more on our blog

See how K18 unlocks our community's expression

4.9

Rated 4.9 out of 5 stars

Based on 2,015 reviews

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2,015 reviews

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Emily S.
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, Frizz
Hair Type Medium Density
My Results Less Frizz, Visible Difference, Less Breakage, Stronger Hair, Smoother Hair
Rated 5 out of 5 stars
3 weeks ago
This worked after just two uses!
I took a before photo to ask Chat GBT what product to use and it recommended K18. I have used it twice on damp hair per the instructions and already my hair looks much better! The second photo is my after picture.
Was this helpful?
K18Hair PRO
2 weeks ago
Wow, we love to hear it! So happy K18 is already making such a visible difference. Thanks for sharing your before and after journey with us, Emily!
Esther Y.
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, Fragile/brittle hair, Color-care, Dryness
Rated 5 out of 5 stars
1 month ago
Hair repair
My bleached hair was so brittle and dry. K18 hair mask saved it after 2-3 uses
Was this helpful?
K18Hair PRO
4 weeks ago
It's amazing how quickly it can work its magic on damaged hair. Thanks for the amazing 5-star review!
Hailey B.
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, Color-care, Split-Ends, Dryness
Hair Type Medium Density
My Results Smoother Hair, Soft Touchable Hair, Shinier Hair, Less Breakage, Visible Difference
Rated 5 out of 5 stars
1 month ago
I love this stuff!
I have been using this for years and will forever keep using it. I recommend to everyone!
Was this helpful?
K18Hair PRO
1 month ago
Your loyalty and recommendation to everyone means the world to us. Thanks for the amazing review!
Delilah P.
Verified Reviewer
Reviewing
Professional Molecular Repair Mask 150 mL (WHOLESALE)
I recommend this product
Age 45 - 54
Client Hair Concerns Chemical Damage, Split Ends, Dryness, Heat Damage, Frizz
Client Hair Types Fine/Thin, Grey Hair, Curly/Coily, Thick/Coarse, Straight/Wavy
Client Results Less Frizz, Bouncy Hair, Visible Difference, Stronger hair, Less Breakage
Rated 5 out of 5 stars
2 months ago
The best restorative medicine for hair! The leave in mask
I’m in love with the line K18 , as a professional hair stylist I’ve tried many different types of treatments and this one for me is a winner! I’m all about theory /certification to really understand the main core principles/use of a product.
Hair feels silky, clean and healthy! Highly recommend K18 to keep that crown shiny.
Was this helpful?
K18Hair PRO
2 months ago
Delilah, we're absolutely thrilled to hear from a professional hair stylist who truly understands the science behind K18! It means the world to us that after trying so many different treatments, K18 stands out as a winner for you.
Denise B.
Verified Buyer
Reviewing
Full-Size Leave-In Molecular Repair Hair Mask 50 mL (WHOLESALE)
I recommend this product
Age 55 - 64
Hair Concern Chemical damage, Frizz, Dryness, Extending time between washes
Hair Type Grey Hair, Straight/Wavy, Medium Density
My Results Less Frizz, Visible Difference, Stronger Hair, Smoother Hair, Shinier Hair
Rated 5 out of 5 stars
2 months ago
Magic in a bottle
This product has transformed my hair!
Why did it take me 60 years to discover it??
Was this helpful?
K18Hair PRO
2 months ago
Thank you so much for this amazing review, Denise! Your hair is beautiful! We love that you're experiencing the magic and appreciate you taking the time to share your wonderful experience!

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client mask pack

Solo profesional

Descripción

Repairs Damage Caused By

Descripción

Preguntas frecuentes sobre las mascarillas K18

¿Cuánta mascarilla sin enjuague debes utilizar?

Cómo crear rutinas para llevar a casa de tus clientes con la mascarilla K18 + DAMAGE SHIELD

Can You Air Dry Without Frizz?

K18 FUNdamentals 02: Mascarillas + Acondicionadores vs. K18

Aumente los resultados de su salón con K18 en casa

Biotecnología vs. química cosmética tradicional

Looks like you're visiting from the UK, you're about to be redirected to our UK site

client mask pack

Solo profesional

Descripción

Repairs Damage Caused By

Descripción

Preguntas frecuentes sobre las mascarillas K18

¿Cuánta mascarilla sin enjuague debes utilizar?

Cómo crear rutinas para llevar a casa de tus clientes con la mascarilla K18 + DAMAGE SHIELD

Can You Air Dry Without Frizz?

K18 FUNdamentals 02: Mascarillas + Acondicionadores vs. K18

Aumente los resultados de su salón con K18 en casa

Biotecnología vs. química cosmética tradicional

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