Khairpep’s patented K18Peptide™

has an unusual origin story.

A team of European researchers led by noted biotechnologist, Prof Artur D Cavaco-Paulo were researching the glycoproteins synthesized in the epithelial cells of the lungs. One of the protein fragments (Surfactant Protein D) had a unique ability to diffuse through the lipids (also present in the innermost layers of our hair) and bind with lipophilic proteins such as keratin.

Inspired by this discovery, Prof Artur and his team mapped the entire active keratin genome expression of our hair (think of the Human Genome Project) to identify protein fragments (also called peptides) that could bind very well with the keratin associated proteins (KAP) in our hair. The KAPs play a crucial role in forming a strong hair shaft through a cross linked network with keratin intermediate filaments (KIFs) produced by hair keratins.


After extensive further research that lasted several years, the K18Peptide™ was developed and patented – it is the longest chain peptide that can penetrate the hair cortex to participate and interchange with the di-sulfide bonds in our hair. (long amino acid chains deliver complex functionality and therefore better biological efficacy).

This new frontier of science called biomimetics progressively repairs hair to its healthiest state. It also restores the natural elasticity and texture to your hair without weighing hair down. Your hair feels alive and its youthful best with lasting shine and hair color.

The Science

K18Peptide™ is a oligo peptide formulated to shuttle amino acids (the building blocks of hair) into the inner structure of the hair. Once inside the hair, the unique amino-acid chain bonds with the hair protein, repairing the broken disulfide bonds, reattaching the hair fibre, adding strength and elasticity, and restoring the hair’s health, shine and manageability.

What can K18Peptide™ do?

Clinically proven to penetrate and repair damaged hair

Using fluorescence microscopy, independent researchers showed that K18Peptide™ penetrates into the hair cortex, bonds with hair proteins – and remains even after daily shampooing.


Images show K18Peptite™ in the structure of the hair

On unbleached hair treated with K18Peptide™.
On bleached hair treated with K18Peptide™.


Repairs bleached hair

When hair that had been bleached 8 times was treated with K18Peptide™, the hair strength increased by up to 85%.


Repairs relaxed and straightened hair

Virgin hair was relaxed with a strong alkaline/guanidine solution to produce intense straightening conditions, then treated with K18Peptide™. The result was an over 90% recovery of hair strength.


Improves elasticity

Independent clinical tests verified an up to 120% improvement in elasticity.

Results improve with repeated treatments

Repeated applications saw up to an additional 41% increase in hair strength.