lactic acid/glycolic acid copolymer ●
TL;DR. This ingredient is primarily used as a biodegradable film-former, texture modifier, and encapsulation matrix. It can help create controlled-release systems for actives or improve the feel and wear of a formula.
What does lactic acid/glycolic acid copolymer do in a cosmetic formula?
This ingredient is primarily used as a biodegradable film-former, texture modifier, and encapsulation matrix. It can help create controlled-release systems for actives or improve the feel and wear of a formula.
Is lactic acid/glycolic acid copolymer clean?
From a clean-beauty perspective, it is generally a low-sensitization material with no typical fragrance-allergen or preservative-list concerns. The main friction is that it is a synthetic polymer, so some standards and retailers may scrutinize particulate formats or require biodegradability documentation.
Is lactic acid/glycolic acid copolymer sustainable?
This material is commonly made by polymerizing small organic acid building blocks that may come from fermentation, petrochemical routes, or mixed supply chains. Its ester backbone can break down by hydrolysis and microbial action, although degradation speed depends on particle size, molecular weight, temperature, and moisture.
Is lactic acid/glycolic acid copolymer COSMOS-approved?
It is not a straightforward fit for COSMOS organic or natural certification because synthetic polymers are tightly limited, and acceptance depends on the exact grade, sourcing, and certifier review. Its Green Chemistry case is stronger when the feedstocks are renewable, residual solvents are well controlled, and biodegradation data are available.
How does lactic acid/glycolic acid copolymer work chemically?
The molecule is an aliphatic polyester built from two alpha-hydroxy acid units, and the unit ratio plus molecular weight control glass-transition behavior, hydrolysis rate, and film properties. It is most stable in dry systems, slowly cleaves in water, and breaks down faster with higher pH, higher temperature, and higher water activity.
Last updated 2026-05-13