109 Chapel St


VIC 3181

p: 9533 7990

3A Smith Street


VIC 3820

p: 5622 2200

34 reviews

K18 Molecular Repair Hair Mask 50ml



leave-in molecular repair hair mask

10 years of biosciences research 

 1 breakthrough peptide.


K18Peptide™  was patented after scanning and analysing 1,242 deca-peptides that cover the entire genome of human keratin proteins.

After a decade of research, the inventor discovered one unique sequence unlocking the science to bring strands damaged from chemical services and thermal/mechanical styling back to their original, youthful state — the K18peptide.


Patented K18 is not just a temporary fix — it is the first product to utilise biomimetics to reconnect keratin chains once broken by bleach, colour, and chemical services, resulting in soft, smooth, strong hair with bounce that feels like new.

The more damaged the hair, the more dramatic the results.
hair damage electron microscope image

K18 Peptide™

it starts with science

The only patented bioactive peptide treatment clinically proven to repair hair and reverse damage from chemical services, thermal styling, and mechanical styling. For all hair types. #k18hair

Usage: Shampoo, do not condition. Towel-dry throughly.
Begin with 1 pump of K18 Mask and add more as needed depending on length, thickness, and condition.
Work evenly into hair from ends to roots, one pump at a time. 
Let is sit for 4 minutes to activate. Do not rinse out.

Use for the first 4-6 washes, and then every 3-4 washes as needed.

    - Lightweight, cream consistency

    - Great for longer hair types, medium to thick hair, knotty hair and curly hair.

    - K18 MOLECULAR REPAIR MASK has detangling properties making it easy to distribute and comb through the hair after shampooing

    - Fast absorbing and lightweight, you do not notice the product weight being left in your hair

    - pH 5.4 helps in rebalancing chemically altered hair back to it's natural pH 5.5 - 6.5

    - locks down the cuticle for increased shine and resilience

    K18 works by reforming the disulphide bonds and reconnecting the keratin chains in damaged hair. These bonds make the hair more resilient.

    The K18 peptide transforms damaged hair into hair with greater flexibility and resistance, scientifically proven. This groundbreaking new technology surpasses any other product on the market when it comes to repairing hair damaged by chemical services and heat styling.

    Unlike 'plex' products that are mixed with colour and bleach during chemical services, K18™ provides a simpler and more effective solution that doesn't wash out overtime.

    Khairpep K18 is a treatment like no other; being a peptide based treatment, a leave-in treatment and contains 18 of 23 amino acids, it works to reconnect broken keratin chains by carrying amino acids back into the core of the hair and restoring the hair's overall integrity, adding shine and improving elasticity.

    Hair is made up of a protein called Keratin, the inner core of the hair contains Disulphide bonds and Hydrogen bonds that help keep the hairs heath and integrity intact.

    When the hair becomes damaged from colour, chemical relaxers, hot tools, environmental aggressors and more, the Disulphide bonds often break - this causes the hair to become weak and damaged.

    When we wet and shampoo our hair the Hydrogen bonds break, however, they reset when the hair is dried.

    For K18 to work, the hair needs to be shampooed and wet (hydrogen bonds - broken) so the cuticle is open, creating an entrance portal to the inner structure of the hair.

    The K18 can then travel into the hair and release the amino acids.

    Once in the hair the amino acids work like a transplant, re-linking and repairing the broken keratin chains and disulphide bonds.

    In turn restoring hair back to almost virgin-like quality!

    K18 then remains in the hair, no rinsing out and no conditioning, sealing itself inside the inner structure of the hair.

Customer Reviews
4.8 Based on 34 Reviews
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Filter Reviews:
    Sharyn H.
    Australia Australia
    Love the product

    Delivery took a while but I presume it was because of lockdown in Victoria at present

    Amanda S.
    Australia Australia
    Fantastic service

    Love my K18 & love that I was able to buy it at Chumba cheaper than anywhere else with free shipping!

    Kim G.
    Australia Australia

    It was a great transaction, very prompt delivery

    Tracy K.
    Australia Australia
    Excellent Service

    Fast, efficient and easy process. Will definitely buy from Chumba again. Great job, guys!!

    Denise W.
    Australia Australia
    Very Easy to use

    Effective and very easy to use - I'm not sure about using again - I will wait till I finish to see how my hair goes as this is quite pricey.