Professional Molecular Repair Hair Mist

Professional Molecular Repair Hair Mist is rated 4.8 out of 5 by 134.
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10 oz.
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What It Is

• Made to be used as part of the K18 PRO service (K18 PRO Mist + K18 PRO Mask)

• 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.

What It Does

• 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.
• Renews hair for better in-salon results - restores chemically damaged hair and makes hair more resilient for optimal salon transformations. Use before services for a stronger foundation and to help prevent damage during services.
• Resets hair’s strength and elasticity – allowing you to push transformations further with confidence.
• 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.

What Else You Need to Know

• In cases of extreme damage or certain salon services, the mist works alone to renew hair without weighing it down.

• 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.

• pH level 7.5-8.0 makes the treatment more efficient by swelling the hair’s cuticle, allowing the K18PEPTIDE™ to better access the core.
• Made without emollients, the PRO mist won’t interfere with chemical and color services.

• 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 with a chemical service:

1. Turn trigger to “on” position. 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. Follow with the K18 professional molecular repair hair mask as directed to complete the molecular repair service

 

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

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.

Purchases made in SalonCentric stores may be returned to any SalonCentric store. Purchases made through SalonCentric Customer Service, SalonCentric Business Partners, and SalonCentric.com orders Sold and Shipped by SalonCentric may be returned to a SalonCentric store; however, the return must not exceed $450 and must include the original receipt, packing slip, or invoice. For returns in-store of online orders, the refund will be credited back to the original payment method once the return has been processed. For SalonCentric.com Online Exclusive orders sold and shipped by third-party sellers, please see more details linked below for return steps.

The SalonCentric return policy does not currently apply to Kérastase & Shu Uemura purchases. Kérastase & Shu Uemura do not accept returns.

Click to see more details.

Rated 5 out of 5 by from Love all k18! My order was processed quickly, packaged with care, and everything was to my liking.
Date published: 2026-03-10
Rated 5 out of 5 by from Game changer for lightening This has been a game changer behind the chair. All of my blondes have been so happy and wondering where it has been all their lives
Date published: 2025-11-20
Rated 5 out of 5 by from Works wonders! Recommend using before all chemical services. My new favorite product.
Date published: 2025-09-09
Rated 5 out of 5 by from Definitely saw a difference after using this. Was able to overlap onto previously lightened hair without causing damage.
Date published: 2025-08-15
Rated 5 out of 5 by from have used this for years I will always prep my clients with k18 before coloring or lightening. Important to follow directions to a t
Date published: 2025-08-06
Rated 5 out of 5 by from Amazing! Makes a huge difference in the health of the hair during lightening services!
Date published: 2025-07-30
Rated 5 out of 5 by from Worth the money! Awesome product, the whole line is incredible Actually! Worth every penny
Date published: 2025-07-03
Rated 5 out of 5 by from best. repair. mist. ever. Not only do I use this after I get out of the shower, but I even use this when I go to bed at night when I put my hair in braids, I use it when the ends are a little dry in between washes, it’s not heavy, it’s light enough to put on dry hair and it doesn’t dry oily, and it’s not heavy either. It’s simply the best. This regimen has changed my hairs life.
Date published: 2025-06-24
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