Chitosan ●
TL;DR. This ingredient is a cationic film-former and conditioning agent used to improve hair feel, reduce static, and add a light tightening or smoothing effect on skin. It can also help stabilize dispersed particles and support lightweight gels or coatings.
What does Chitosan do in a cosmetic formula?
This ingredient is a cationic film-former and conditioning agent used to improve hair feel, reduce static, and add a light tightening or smoothing effect on skin. It can also help stabilize dispersed particles and support lightweight gels or coatings.
Is Chitosan clean?
From a clean-beauty perspective, this ingredient is generally well tolerated and not a common restricted-list concern. The main watchpoints are source disclosure, shellfish-derived origin for some supply chains, and residual protein or mineral impurities controlled by purification quality.
Is Chitosan sustainable?
This material is usually made from crustacean shell byproducts, so it can valorize seafood-processing waste and is biodegradable. Its footprint depends on acid and alkali processing, water use, and whether non-animal or fungal sourcing is available for the formula brief.
Is Chitosan COSMOS-approved?
It is generally compatible with COSMOS-natural frameworks when produced from permitted natural feedstocks and approved processing routes, though supplier documentation matters. Green Chemistry fit is strong on renewable byproduct sourcing and biodegradability, with some process burden from demineralization and deacetylation chemistry.
How does Chitosan work chemically?
The molecule is a partially deacetylated, cationic polysaccharide with primary amine groups that become protonated in mildly acidic systems. It is typically used around 0.1% to 2%, performs best below about pH 6 to 6.5, and can complex with anionic surfactants, gums, and polymers.
Last updated 2026-05-13