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Humectant

PROPYLENE GLYCOL

CAS 57-55-6
80

Safety score · 0–100

Good

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

A small humectant solvent — pulls moisture into skin, dissolves actives, and supports preservation. Generally well-tolerated; a known but uncommon contact allergen.

Function

HUMECTANTFRAGRANCESOLVENTVISCOSITY CONTROLLINGSKIN CONDITIONING - HUMECTANTSKIN CONDITIONING - MISCELLANEOUS

Skin benefits

  • Hydration
  • Ingredient delivery
  • Preservative booster

Known concerns

  • Contact allergy in sensitive users

References

EU

EU CosIng database

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

PC

PubChem

U.S. NIH compound data, GHS hazard codes and toxicity literature.

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Same plant / compound family

84
PROPYLENE GLYCOL ALGINATE
Thickener
 81
PROPYLENE GLYCOL AZELATE ESTERS
Emollient
 78
PROPYLENE GLYCOL BEHENATE
Emollient
 55
PROPYLENE GLYCOL BUTYL ETHER
Solvent
 80
PROPYLENE GLYCOL CAPRETH-4
Surfactant
 78
PROPYLENE GLYCOL CAPRYLATE
Emollient

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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.