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PEG-4 PROLINE LINOLENATE

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, the amino acid proline, and omega-3 linolenic acid — designed to deliver moisturising and skin-conditioning benefits.

PEG-4 Proline Linolenate is a polyethylene glycol ester incorporating L-proline and alpha-linolenic acid (an omega-3 fatty acid) with 4 moles of ethylene oxide. It functions as an emollient and skin-conditioning agent. The proline component supports collagen synthesis (proline is a key collagen amino acid), while linolenic acid provides anti-inflammatory and barrier-repair benefits. As a low-EO PEG derivative, 1,4-dioxane contamination risk is minimal but should be monitored. No GHS hazards or EU restrictions apply. Limited independent safety data exists for this specific compound.

Skin benefits

  • Emollient moisturisation
  • Proline supports collagen synthesis
  • Omega-3 anti-inflammatory benefits
  • Skin barrier support

Known concerns

  • PEG compounds may contain trace 1,4-dioxane from ethoxylation
  • Limited independent safety data for this specific ingredient
  • Should not be applied to damaged or broken skin (PEG enhances penetration)

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.