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PPG-2 NEOPENTYL GLYCOL DIACRYLATE.

Questionable CAS 84170-74-1 / FILM FORMING

PPG-2 NEOPENTYL GLYCOL DIACRYLATE is an acrylate monomer primarily used as a film-forming agent in cosmetic products. It forms a continuous, robust film on skin or nails, enhancing mechanical strength and adhesion.

Summary

Film-forming

Science

Mechanism of Action

This ingredient functions by undergoing polymerization and crosslinking to form resilient polymeric networks upon application. This process significantly improves the mechanical integrity, adherence, and overall resistance of the resulting film. As a derivative of polypropylene glycol (PPG), it also contributes to formulation properties, potentially acting as a solubilizer or solvent within the cosmetic matrix.

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

As a reactive monomer, PPG-2 NEOPENTYL GLYCOL DIACRYLATE requires stabilization for storage and should be kept cool, away from light and heat. Exposure to an oxygen-free atmosphere must be avoided as vapors can polymerize. The neopentyl glycol backbone is thermally stable but decomposes above 140°C in the presence of alkali salts or bases. Solubility in water is described as moderate (293 mg/L at 20°C for propoxylated neopentylglycol diacrylate).

Conflicts

  • strong oxidizing agents
  • strong reducing agents
  • free radical generators
  • peroxides

Safety

Safety Profile

CIR Status
Not reviewed
Sensitization risk Moderate

PPG-2 NEOPENTYL GLYCOL DIACRYLATE itself has not undergone a specific, direct Cosmetic Ingredient Review (CIR) safety assessment. While related ingredient groups like 'Monoalkylglycol Dialkyl Acid Esters' and 'Propylene Glycol Esters' are deemed 'safe as used' by CIR, a closely related compound, propoxylated neopentylglycol diacrylate, is identified as a moderate skin sensitizer. It may cause an allergic skin reaction and is irritating to the eyes, skin, and respiratory tract. PubChem also lists GHS classifications indicating it causes skin irritation and serious eye irritation. It is listed in the FDA Global Substance Registration System (GSRS).

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Questionable

Due to its classification as a moderate skin sensitizer and irritant, coupled with a lack of direct CIR safety review, PPG-2 NEOPENTYL GLYCOL DIACRYLATE is questionable for general topical skincare, making it more suitable for specialized applications like nail polishes or coatings.

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