Science
Mechanism of Action
This copolymer acts primarily by forming a protective film on the skin's surface, effectively slowing transepidermal water loss and imparting a smooth, non-sticky, non-oily feel. Beyond its barrier function, it uniquely enhances the binding of intrinsic hyaluronic acid and mucopolysaccharides to proteins within the skin's connective tissue. As a sophisticated delivery technology, it is designed to optimize the penetration and sustained release of active compounds, such as peptides, over 24 hours, thereby maximizing their efficacy and hydrating benefits. It also exhibits very mild surfactant properties.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
This block copolymer is sensitive to excessive heat. To maintain its integrity and prevent oxidative breakdown, products containing it should be stored indoors, away from direct heat sources. Repeated melting and re-melting of solid forms should be avoided.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) deems this ingredient safe for use in cosmetics. While broader categories of PEGs and PPGs are generally considered safe when properly formulated to be non-irritating, no specific GHS hazard classification has been assigned to PEG/PPG-30/35 Copolymer. Animal oral toxicity studies (e.g., rabbit LD50 35000 mg/kg) indicate low systemic toxicity; however, specific dermal toxicity for this compound was not determined in those studies.
Your Skin
Skin Compatibility
Our Assessment
Verdict
PEG/PPG-30/35 Copolymer is a valuable multifunctional ingredient, offering enhanced hydration, film-forming benefits, and optimized active ingredient delivery across all skin types with a low risk of irritation or comedogenicity.
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References
Sources