K18 Leave-In Molecular Repair Hair Mask


A 4-minute leave-in treatment to clinically reverse hair damage and split ends.

An at-home leave-in treatment infused with the patented K18Peptide™ that works on a molecular level to repair even the most extreme damage, reversing hair to its most youthful, healthy state—leaving strands soft and strong.

Perfect to use after hair lightening, colour, perms, relaxers, thermal reconditioning, keratin straightening, general treatments, and even after a simple haircut. Even ideal for treating damage caused by the sun, heat, products, water and environmental aggressors.

creates hair like new
Traveling deeper into the inner layers of hair than traditional repair products, the revolutionary patented K18Peptide™ is just the right size and makeup to fit in and reconnect broken keratin chains, renewing hair with strength, softness, smoothness, and bounce. You can feel and see the difference after the first use.

See dosage chart for exact usage. For best results, use for the first 4-6 consecutive washes following a service, then every 3-4 washes as needed to maintain hair strength.

results don’t just wash away
The K18Peptide™ mimics the natural keratin building block structure in the hair, and is recognised as natural by the hair instead of a facilitated bond – so it perfectly integrates itself within keratin chains to rebuild and restore hair immediately, and over time. That means it’s not washed away by water or shampoo, like traditional bonding agents. K18 is a genuine and lasting damage solution.

You cannot overuse K18 products, so there is no worry about using the correct amount per client.

  1. Shampoo, do not condition.
  2. Towel dry thoroughly.
  3. Begin with 1 dime-sized amount (about 1 ml) of the K18 Mask and add more as needed depending on the length, thickness, and condition of your hair.
  4. Work evenly into hair from ends to roots, one portion at a time.
  5. Let sit for 4 minutes to activate.
  6. Do NOT rinse out.
  7. Style as usual.


Dosage guide:


  • Do use K18 Mask on all hair types
  • Do use after every bleach or colour service
  • Do dry hair thoroughly with a towel before applying K18 Mask
  • Do use K18 Mask before and after toning
  • Do wait the full 4 minutes before styling or adding additional products
  • Do add a leave-in conditioner after the 4 minutes if hair feels like it needs moisture
  • Do use a heat protectant if heat styling hair


  • Don’t use conditioner before applying K18 Mask
  • Don’t use too much (refer to the dosage chart for help)
  • Don’t rinse it out

K18Peptide™ is clinically proven to reverse damage in just 4 minutes.

Why you should join the haircare revolution:

  • Repairs from the inside for hair that looks and feels like new
  • Heals damage from bleach, colour, chemical services, and heat
  • Restores strength, softness, smoothness, and bounce
  • Can be used at home right after any salon service to keep hair in its healthiest, strongest state
  • Doesn’t wash away with shampoo, leaving lasting results
  • Concentrated formula ensures a little goes a long way, and replaces the need for a conditioner
  • Vegan, colour-safe, cruelty-free
  • Formulated without sulphates, parabens, phthalates, silicones, artificial colours, sodium chloride and formaldehyde

Restore your hair back to:

91% of its original strength
94% of its original elasticity

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.


hair like new

no matter what you put it through


The award-winning hair care brand has landed in South Africa.

A breakthrough in biosciences

K18Peptide™ was patented after a decade of scanning and testing the 1,242 decapeptides that cover the entire genome of human hair keratin proteins. The K18Peptide™ is the one unique sequence unlocking the science of transforming damaged hair back to its original, healthy state.

Patented K18 is not just a temporary fix — it’s the first product to utilize biomimetics to reconnect keratin chains once broken by bleach, colour and chemical services, resulting in soft, smooth, strong hair that feels like new. No more worrying about damage sitting in the salon chair. Now you have a healthy, clean canvas of strong hair.

The more damaged the hair, the more dramatic the results.


For all hair types, for every generation.

This is BIOMIMETIC HAIRSCIENCE — a new frontier in the hair industry.

Heals hair in 4 minutes.

A radically different approach to hair damage.

Until now, hair care products covered up damage with conditioning treatments that coat the hair in oils, bringing superficial hydration and sheen. Repair treatments patch damage like internal glue – strong but brittle — but provide temporary results.

K18 is the first product that actually heals your hair from the inside out. K18 is clinically proven to undo hair damage caused by chemical services, thermal styling, mechanical styling, and environmental damage.

Damage is universal, and now lasting repair can be too.

See how K18 treats damage differently


the only patented bioactive peptide treatment clinically proven to reverse damage from:

Science, not cosmetics.


with just one treatment, hair is restored to

91% original strength

94% original elasticity

the more damaged the hair, the more dramatic the results.

Use during and after any salon service.

Use K18 after ANY salon service that creates ANY form of damage.

Thermal reconditioningKeratin reconditioning
General treatmentsHaircuts
Sun damageHeat damage
Environmental aggressorsBrush damage


soft, smooth, strong, bouncy hair that feels like new.


Use K18 after ANY salon service that creates ANY form of damage.


Lightening chemicals used in colouring wreak havoc with your hair, and damage is a real threat. Nothing spoils a new hair colour like damage. Get rid of that that damage with the repairing and rebuilding action of K18. Imagine this: a platinum transformation with no damage.
Chemical services like relaxers can cause major damage. Using K18 reverses the damage for smooth, silky hair with none of the brittleness and damage. Now your perm or relaxer can look as you intended it to.
Frequent use of hot styling tools can create dry, brittle hair with an unhealthy look any feel. K18 reverses this damage so your styling looks stunning on healthy hair.
Hair damage is a disaster for maintaining any curl or wave pattern. K18 reverses this damage so curls and waves retain their structure and vitality. Rejuvenate the hair for bouncy waves and curls.




how K18 affects the hair




Additional information


5ml, 15ml, 50ml

Brand K18


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