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PEG-800/POLYVINYL ALCOHOL COPOLYMER.

Valuable / FILM FORMING, HAIR FIXING

PEG-800/Polyvinyl Alcohol Copolymer is a multifunctional ingredient primarily recognized for its film-forming capabilities, creating a protective barrier that retains moisture and enhances skin smoothness. It also functions as a humectant, attracting hydration, and serves as an effective emulsifier and thickening agent in various formulations.

Summary

Film Forming Humectant Emulsifier Solubilizer Thickening Binding Agent Plasticizer Hair Fixative

Science

Mechanism of Action

This copolymer creates a flexible film on the skin's surface, which acts as a physical barrier to prevent moisture loss, leading to improved hydration and a smoother skin texture. As a humectant, it actively draws water into the skin. In formulations, it stabilizes oil and water phases as an emulsifier and solubilizer, while also contributing to product consistency as a thickening and binding agent. The PEG component further imparts flexibility to the formed films, enhancing their cosmetic properties.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH 5 – 8
0 7 14

Stability

Polyethylene glycols, including this copolymer, are susceptible to oxidative degradation when exposed to air. To maintain stability, it is advisable to minimize exposure to elevated temperatures and oxygen, or to incorporate an antioxidant. Aqueous solutions of PEG are stable at room temperature and do not undergo hydrolysis under these conditions; dissolution can be performed safely in warm water (80-90 °C).

Conflicts

  • Phenol
  • Penicillin
  • Bacitracin
  • Sorbitol
  • Tannic acid
  • Salicylic acid
  • Certain plastics (may compromise integrity)
  • Ferrous pigments (potential interaction in makeup layered over PEG-containing skincare)

Safety

Safety Profile

CIR Status
Safe as used
Sensitization risk Low

The broader class of Polyethylene Glycols (PEGs) is recognized as safe for cosmetic use by regulatory bodies like CIR and FDA. This specific copolymer (PEG-PVA) is approved in pharmaceutical products, including FDA approval for ibuprofen tablets in 2008, and has received a GRAS (Generally Recognized As Safe) food additive petition. While PEGs are generally considered non-irritating and non-sensitizing at regulated levels, it is noted that one source indicates a 'likelihood of irritation' for PEG-800/Polyvinyl Alcohol Copolymer, particularly when combined with other potentially problematic ingredients, which may manifest as irritation, inflammation, or dryness. General concerns for PEGs include potential trace contamination with ethylene oxide and 1,4-dioxane (carcinogens) from the manufacturing process, and a potential to wash out natural skin lipids, particularly in individuals with atopic skin.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

PEG-800/Polyvinyl Alcohol Copolymer is a versatile ingredient that effectively forms a protective, hydrating film on the skin while enhancing product stability and texture, generally considered safe for cosmetic use with a moderate potential for irritation in specific conditions.

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