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PEG-4 PROLINE LINOLEATE

75

Safety score · 0–100

Fine

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

A specialty emollient combining PEG, proline, and omega-6 linoleic acid — moisturises while delivering skin-barrier-supporting fatty acids.

PEG-4 Proline Linoleate is a polyethylene glycol ester incorporating L-proline and linoleic acid (an omega-6 essential fatty acid) with 4 moles of ethylene oxide. Like its linolenate counterpart, it functions as an emollient and skin-conditioning agent. Linoleic acid is a key component of ceramides in the stratum corneum, making this ingredient particularly relevant for barrier repair. The low degree of ethoxylation minimises 1,4-dioxane contamination concerns. No GHS hazards or EU restrictions are listed.

Skin benefits

  • Emollient moisturisation
  • Linoleic acid supports ceramide production
  • Proline aids collagen synthesis
  • Barrier repair support

Known concerns

  • PEG compounds may contain trace 1,4-dioxane from ethoxylation
  • Limited independent safety data
  • Should not be applied to damaged skin

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, so always read the physical product label and consult a healthcare professional for personal concerns.