Lactic Acid/Glycolic Acid Copolymer
What is Lactic Acid/Glycolic Acid Copolymer?
Lactic Acid/Glycolic Acid Copolymer is a biodegradable polyester formed by polymerizing lactic acid, typically sourced from fermented milk sugars, and glycolic acid, derived from natural sugar sources. Primarily featured in rinse-off cosmetic products like peel-off masks and facial packs, it serves as a film-forming agent. Upon application and drying, it creates a thin, elastic layer on the skin that lightly binds to surface debris, excess sebum, and loose cells for straightforward removal. This mechanism supports skin conditioning by preserving surface hydration and suppleness, distinct from the exfoliating action of its free acid counterparts. The polymer's structure ensures minimal absorption, focusing benefits on the outer skin layers while leaving no persistent residue after use.
Roles in Formulation
This ingredient serves the following purposes in cosmetic formulations:
Benefits
Enhances skin softness and flexibility through film formation.
Supports surface hydration in conditioning products.
Non-comedogenic profile suits broad skin types.
Who It's For
A quick guide for who this ingredient may suit (and who should be cautious).
| Who May Benefit | Who Should Avoid |
|---|---|
| People using peel-off masks for gentle cleansing. | Those with allergies to hydroxy acid derivatives. |
| Individuals with normal or dry skin seeking conditioning. | People avoiding synthetic polymers in routines. |
| Users desiring polymer-based film removers. | Highly sensitive skin without prior patch testing. |
Safety Notes
- Low hazard potential in cosmetic concentrations.
- Generally mild for topical rinse-off applications.
Frequently Asked Questions about Lactic Acid/Glycolic Acid Copolymer
What does Lactic Acid/Glycolic Acid Copolymer do?
It forms a peelable film to condition skin and aid impurity removal in masks.
Is it safe for daily use?
Safe in rinse-off products at typical levels for most users.
Does it hydrate skin?
Supports surface softness and moisture retention as a conditioner.