Damaged hair goes beyond aesthetics. If you think of hair like a rope, the more stress and damage it is exposed to, the more the rope starts to break and unravel. Healthy hair starts below the surface, deep in the hair’s cortex. Of course, smoother, more vibrant hair is the outcome of continued protection and repair, but the real well-being happens beyond the naked eye. 

So while superficial haircare covers up signs of damage, and bond building technology temporarily reconnects disulfide bonds, the structural peptide bond damage is still there. 

Utilizing breakthrough synthetic biology, K18 engineered a lasting solution to hair damage for all hair types + salon services. It’s powered by our patented K18PEPTIDE™ to reverse bleach* + color*, chemical services*, and heat damage* in just 4 minutes. This 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.

Now on a scientific level, your clients’ healthiest hair will have strong structural integrity, optimized pH levels, and a protein-rich cortex—all addressed in the signature K18REPAIR™. 

So what makes K18 molecular repair the go-to for global hair experts?

• Longer lasting, more durable repair

• In-salon service with 2 steps, 4 minutes each—no extra rinse

• Clinical repair in just 1 use

• Lower price per service vs. multi-step alternatives

• 1-step client take-home

Let’s break down the radically simple innovations behind unparalleled transformations.

what’s K18REPAIR™?

K18REPAIR™ is our 2-step in-salon service made of the PRO mist + PRO mask to reverse damage, and transform results. Powered by the reparative K18PEPTIDE™, in just one application the K18 molecular repair service strengthens and fortifies hair before services, and reverses damage after salon services, giving you the confidence to push transformations further on stronger, more resilient hair. 

what’s the professional molecular repair hair mist?

Reaching for the K18 professional molecular repair hair mist at the start of any service is the first step to your client’s healthiest hair. This leave-in, lightweight mist repairs existing damage to strengthen hair’s defenses and make it more resilient prior to salon services. In a single, 4-minute application of the K18 PRO mist, you can: 

• Fortify hair pre-service to restore up to 99% elasticity*

• Improve hair’s resilience to prevent damage during and after services* for stronger hair over time*

• Make color last longer + fade slower* when paired with K18 mask usage at home

We put these clinicals to the test against 5 rounds of bleach, with and without K18 PRO mist. The results speak for themselves.