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Propylene Glycol Extracts

The presence of the above symbol on a W.Last product is an indication that it is an propylene glycol based extraction.

Propylene Glycol Extracts

Propylene glycol extracts or Hydro-glycol extracts are herbal extractions prepared according to a proprietary propylene glycol and water extraction method developed by W.Last.

The final product comprises of a mixture of propylene glycol and water with a wide variety of applications. Propylene glycol is (GRAS) generally regarded as safe by the FDA and also forms part of many food products in the European Union.

Propylene Glycol Applications:

  • Creams, gels and other topicals.
  • Syrups and suspensions
  • Vaping solutions
  • Food industry (flavours)


  • Pleasant tasting and non-toxic compared to other solvents.
  • Suitable for children.
  • Extremely low freezing point (can be kept in very cold climates). Or used in frozen food products and desserts.
  • Alcohol free
  • Suitable for religious groups and vegans


  • Can be toxic when taken orally at extremely high doses.
  • A slightly lower propensity to extract non-polar compounds from herbs than alcohol.