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PEG/PPG-25/25 DIMETHICONE/ACRYLATES COPOLYMER.

Valuable CAS 248935-80-0 / FILM FORMING, HAIR FIXING

PEG/PPG-25/25 DIMETHICONE/ACRYLATES COPOLYMER is a sophisticated silicone-acrylate copolymer engineered to optimize skin texture and product efficacy. It primarily functions as a film-forming agent, imparting a smooth, non-greasy feel while visibly reducing shine. This ingredient also supports the controlled release of other active compounds, enhancing their sustained availability on the skin.

Summary

Film-forming Skin-Conditioning Agent Emulsifier Hair Fixative Humectant Penetration Enhancer Surfactant Cleansing Agent

Science

Mechanism of Action

This ingredient operates by forming a flexible, breathable film on the skin's surface. The acrylate copolymer component actively absorbs excess skin secretions, effectively minimizing shine and establishing an optimal base for makeup application, while simultaneously delivering a soft, silky tactile sensation. The polyoxyethylene glycol (PEG) and polypropylene glycol (PPG) elements contribute to its roles as a potential humectant, skin conditioner, and mild cleansing agent, alongside surfactant and emulsifying properties. This unique chemical architecture also suggests a capacity to enhance ingredient penetration and prolong the bioavailability of other formulation components through a time-release mechanism.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Both
Optimal pH N/A
0 7 14

Stability

The ingredient's solubility in water is highly dependent on its ionization state; it exhibits minimal solubility, less than 0.1%, in its unionized form at low pH. However, upon neutralization, the presence of carboxylate anions and polyoxyethylene glycol chains significantly increases its water solubility. It is typically supplied commercially as an approximately 50% solution in ethanol.

Conflicts

  • Cationic polymers: May induce turbidity and precipitation due to the anionic nature of the acrylate component.
  • Electrolytes: High concentrations of electrolytes can lead to instability for related Acrylates Copolymers.

Safety

Safety Profile

CIR Status
Safe as used
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) has determined the broader category of 'Dimethicone Copolyol', which encompasses components of this ingredient, to be safe for use in cosmetics under current practices and concentrations. Clinical studies on Dimethicone Copolyol, at concentrations up to 40% aqueous solution or undiluted, reported it as non-irritating and non-sensitizing. This ingredient is listed in the FDA's Voluntary Cosmetic Registration Program (VCRP), with PEG/PPG-25/25 dimethicone specifically reported in 2 leave-on products as of December 2013. While the EWG Skin Deep database allows its inclusion in EWG VERIFIED™ products, it notes potential concerns regarding contamination from toxic impurities (e.g., ethylene oxide and 1,4-dioxane) and respiratory issues if used in inhalable forms. However, when contamination restrictions are met, EWG rates concerns for cancer, allergies & immunotoxicity, and developmental & reproductive toxicity as 'LOW'.

Your Skin

Skin Compatibility

Yes Normal
No Dry
Yes Oily
Yes Sensitive
Irritancy Unknown
Comedogenicity Unknown

Our Assessment

Verdict

Valuable

PEG/PPG-25/25 DIMETHICONE/ACRYLATES COPOLYMER is a valuable multi-functional polymer that enhances skin texture, reduces shine, and may aid in ingredient delivery, presenting a low safety risk when properly formulated.

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References

Sources