Polypropanediol-4
A cosmetic ingredient used as emulsion stabilising, plasticiser, solvent in skincare, haircare, and personal-care products sold in the European Union.
What is it?
Polypropanediol-4 is the polymer of Propanediol containing 4 moles of propanediol.
What does it do?
Polypropanediol-4 is listed in the EU cosmetic ingredient inventory with the following declared functions:
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Emulsion stabilising
stabilises emulsions of oil and water, preventing separation over time
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Plasticiser
adds flexibility to film-forming polymers, e.g. in nail polish or mascara
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Solvent
dissolves other ingredients into a uniform liquid phase
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Surfactant - cleansing
surfactant whose primary cosmetic role is cleansing — the active workhorse in soaps, shampoos, and body washes
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Surfactant - emulsifying
surfactant that forms and stabilises emulsions of oil and water — without it, creams and lotions would separate
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Viscosity controlling
adjusts the thickness or flow of a formulation
EU regulatory status
Polypropanediol-4 is allowed for use in cosmetic products in the European Union under Regulation 1223/2009. It is not subject to a specific Annex restriction at the time of writing.
Frequently asked questions
What is Polypropanediol-4?
Polypropanediol-4 is a cosmetic ingredient catalogued in the EU CosIng database. Polypropanediol-4 is the polymer of Propanediol containing 4 moles of propanediol.
Is Polypropanediol-4 allowed in cosmetics in the EU?
Yes. Polypropanediol-4 is allowed for use in cosmetic products in the EU under Regulation 1223/2009.
What does Polypropanediol-4 do in cosmetic products?
Polypropanediol-4 is declared in the EU cosmetic ingredient inventory with these functions: emulsion stabilising, plasticiser, solvent, surfactant - cleansing, surfactant - emulsifying, viscosity controlling.
What is the CAS number of Polypropanediol-4?
The CAS (Chemical Abstracts Service) number for Polypropanediol-4 is 345260-48-2.
Related ingredients
Source: EU CosIng database (European Commission). This page is derived from public-sector information published by the European Commission. · Last updated: 30/04/2018