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PPG-4 C13-15 PARETH-15

CAS 203133-39-5
78

Safety score · 0–100

Fine

Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.

About

A large-molecule ethoxylated and propoxylated alcohol surfactant used as a solubilizer and emulsifier, with low irritation and no EU restrictions.

PPG-4 C13-15 PARETH-15 is a non-ionic surfactant resulting from the ethoxylation and propoxylation of a C13-15 synthetic alcohol blend, with an average of 15 moles EO and 4 moles PO. The relatively high EO number and substantial carbon chain produce a large molecular weight that poorly penetrates skin, making it one of the gentler solubilizers available. It is not subject to restriction under EU cosmetic Regulation 1223/2009.

Skin benefits

  • Effective solubilizer for fragrances and oils
  • Mild co-surfactant in cleansing products
  • Stable across a wide pH range

Known concerns

  • Potential for trace residual monomers
  • Not suitable for eye-area formulations at high concentrations

References

EU

EU CosIng database

European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.

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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.