Leave-in Molecular Repair Hair Mask - For damages hair

Leave-in Molecular Repair Hair Mask

K18 Molecular Repair Leave-In Mask heals damage at the molecular level by repairing broken polypeptide chains/keratin chains to restore the structure where hair's strength and elasticity comes from.

Finally hair with a feeling of renewal. Capable of restoring damaged hair to its original youthfulness, this bioactive peptide repairs and strengthens hair with lightweight moisturizers to detangle and keep hair smooth and soft, without feeling heavy. It does not leave with shampoo or water, like some traditional treatments, which makes it a real lasting solution for damaged hair.

Hair types

For damaged hair

Advantages

K18 is a molecular innovation in the world of hair care that is clinically proven to permanently repair hair in just 4 minutes. It repairs damage caused by fading, staining, chemical treatments and damage caused by heat tools. The more damaged the hair, the more dramatic the results.

• Restores healthy, youthful-looking hair
• Repairs broken bonds and chains in the cortex
• Restores strength, softness, suppleness and volume
• Gradual, long-lasting results that don't fade
• Reduction of split ends
• Regenerates all hair types
• Limits color fading
• Color safe
• Dermatologically tested
• pH balanced at 5.0 - 6.0

How to use it

Apply your shampoo to wet hair as usual. Do not apply conditioner. Towel dry the hair well. Apply the mask starting with 1 pump. Distribute mask evenly through hair, 1 pump at a time, from roots to ends. Use more as needed, depending on hair length, thickness and condition. Leave to act for 4 minutes. Do not rinse and proceed with styling by adding your desired styling products.

Use every 4-6 consecutive shampoos to see and feel full results. It is important not to use too much. Being very concentrated, a small amount is enough.

For fine hair: short = 1 pump / mid-length 1 to 2 pumps / long 2 pumps
For medium hair: short = 1 to 2 pumps / mid-length 2 pumps / long 2 to 3 pumps
For thick hair: short = 2 pumps / mid-length 2 to 3 pumps / long = 4 + pumps

Ingredients and their benefits

• K18Peptide: the patented "K18Peptide" formula is the result of the analysis of 1,242 decapeptides covering the entire genome of keratin proteins. This unique molecule transports amino acids into the hair cortex to reconnect keratin chains and reform disulfide bonds to return damaged strands to their original state.

Tips

The K18 Mask was not formulated to work like a regular conditioner. While some find it provides adequate softening and smoothing properties, others may prefer greater conditioning benefits by adding a leave-in conditioner after the 4 minute treatment time. On days when you're not using the K18 Mask, use your regular in-shower or leave-in conditioner. If heat styling, use heat protectant after the 4 minute set time. You can also layer additional styling products over the mask, if needed.

Awards

Awarded by Cosmopolitan 2025 as the best treatment for damaged hair.