K18PEPTIDE™ MASQUE (50ml / 1.7oz)

  • INFO


This restorative, intensive treatment repairs, strengthens and improves the elasticity of the hair within 4 minutes, all while softening and detangling the hair.

All KhairPep products are free of parabens, suflates, silicones, phthalates, sodium chloride, artificial colors and formaldehyde and formaldehyde donors.  

available for orders over $35 More info

To ensure the best outcome:  

Shampoo hair, Skip the conditioner.

Towel-dry thoroughly.

Apply Masque.

Leave for 4 minutes before styling. Do not rinse out.


How much do I use?

Water (Aqua) (Eau), Alcohol Denat., Propylene Glycol, Dicaprylyl Ether, Cetearyl Alcohol, Cetyl Esters, Behentrimonium Chloride, Polysorbate 20, Isopropyl Alcohol, Hydrolyzed Wheat Protein, Hydrolyzed Wheat Starch, sh-Oligopeptide-78, Phenoxyethatnol. Potassium Sorbate, Fragrance (Parfum), Hexyl Cinnamal, Linalool, Butylphenyl Methylpropional, Geraniol, Benzyl Alcohol

Infused with notes of Jasmine, Peony & Sweet Musk

the masque


Clinically proven to regenerate broken disulfide bonds
in 4 minutes - Doesn’t add additional time to your


Does not wash out even with repeated shampooing


K18Peptides bring the youthful bounce back to your hair


Healthier & smoother cuticles result in shinier hair. Say goodbye to frizz & styling oils chocked with silicones


Stronger hair & less breakage means fuller hair. It’s that simple


Hair color stays vibrant even after 10 washes 


Efficacious ingredient formula lists without silicones or fillers 


What is the difference between between K18 & “plex” products?

Most “plex” type products re-attach broken bonds using covalent crosslinkers, which are temporary. The effect is eventually washed away when the hair is exposed to water or a change in pH. K18 uses patented technology to actually regenerate disulfide bonds, locking the amino acids together as nature intended them, for permanent repair. The effects are clinically proven to not wash out, even after several shampoos.

Does K18 have UV protection?


Does K18 protect from heat?

No, but it repairs damage from heat styling.

Is K18 organic?

No, but it is vegan. 

When should I expect to see results?

You will start to see strengthening and smoothing results after the first use of K18.

Does K18 wash out of hair?

No, K18 is clinically proven to not wash out of hair, even after repeated shampoos.

Should I use K18 before my conditioner or conditioning masque?

On the days you’re using K18, use it instead of your conditioner or conditioning masque. For clients seeking extra hydration, you can apply your conditioner or masque after the 4-minute treatment. You do not need to rinse K18 out. 

Can I mix K18 with other styling products?

We do not recommend mixing K18 with other products, but you can layer styling products over K18 after the 4 minute processing time.

Can I use K18 on day 2 hair?

No, for best results use on towel-dried, damp hair after washing. 

Is K18 applied to dry or damp hair?

Always apply K18 to towel-dried, damp hair.

Can I use K18 every day?

K18 is designed to be used consecutively for 3-6 washes, and then every 3-4 washes to maintain your healthiest hair possible.

Can I overuse K18?

K18 is a concentrated treatment. To avoid overuse, we recommend using K18 consecutively for 4-6 washes, and then every 3-4 washes to maintain your healthiest hair.

Will K18 weigh my hair down?

No, the formula is lightweight and works on the inside of the hair so hair is left feeling clean and light. 

Who is K18 for?

Anyone looking for stronger, healthier hair. 

What happens if I apply styling products before the 4 minutes after applying K18?

Applying styling products before the 4 minute processing time will diminish the efficacy of K18.  

Why do you use K18 Masque on towel dried hair?

K18PeptideTM is not able to regenerate bonds in the presence of too much water inside the cortex. However, the hair needs to be slightly damp to help with penetration of the product into the hair.  

Why do you skip conditioner?

Conditioner formulas use silicones and conditioning agents that form heavy coatings on the hair which would prevent K18PeptideTM from penetrating to the broken bonds within the cortex. K18 is most effective on clean, towel-dried hair. 

Why do you need to leave K18 Masque in?

K18 is more effective when left-in. The formula is lightweight and works on the inside of the hair, so the hair is left feeling clean and light, even without rinsing it out