K18PEPTIDE™

TL;DR. This ingredient is a hair-conditioning active designed to support bond-repair claims in damaged hair. It helps improve strength, elasticity, and feel after bleaching, coloring, heat styling, or other high-stress treatments.

What does K18PEPTIDE™ do in a cosmetic formula?

This ingredient is a hair-conditioning active designed to support bond-repair claims in damaged hair. It helps improve strength, elasticity, and feel after bleaching, coloring, heat styling, or other high-stress treatments.

Is K18PEPTIDE™ clean?

From a clean-beauty perspective, it is generally viewed as a low-irritation peptide-type active and is not a common allergen or standard restricted-list ingredient. The main caveat is limited public detail on manufacturing, purity specifications, and carrier system because it is proprietary.

Is K18PEPTIDE™ sustainable?

This material is a specialty amino-acid-based molecule, likely made through synthetic or biotechnology-assisted production rather than direct agricultural extraction. Peptides generally break down into smaller amino-acid fragments, but the sustainability profile depends on solvent use, energy demand, and supplier controls that are not fully public.

Is K18PEPTIDE™ COSMOS-approved?

It is not a straightforward fit for COSMOS organic or natural approval unless supplier documentation confirms compliant biotechnology, processing aids, and carriers. From a Green Chemistry lens, low use levels and peptide biodegradability are positives, while specialty synthesis and limited sourcing transparency keep it in a qualified position.

How does K18PEPTIDE™ work chemically?

The molecule is a short chain of amino acids engineered to interact with keratin-rich hair fibers, especially areas affected by chemical or mechanical damage. Use level, exact sequence, and formulation parameters are proprietary, but materials of this type are typically used at low active levels in leave-on or rinse-off hair treatments where pH, water activity, and compatibility with conditioning systems matter.

Last updated 2026-05-14