Propanediol – The Gentle Hydrator & Solvent
Propanediol is a **naturally derived alternative to petroleum-based glycols** used in skincare as a **humectant, solvent, and skin-conditioning agent**. It enhances product texture while providing lightweight hydration.
Discovery & Manufacturing
Propanediol was first studied as a biobased alternative to Propylene Glycol, with research into fermentation-derived versions intensifying in the early 2000s.
The ingredient is now primarily produced via corn sugar fermentation using bacteria such as Clostridium butyricum. This process results in a biodegradable, non-irritating alternative to synthetic solvents.
Today, leading manufacturers include companies in the United States, Germany, and China, where it is widely used in clean beauty formulation. One of the most well-known producers of fermented Propanediol is DuPont Industrial Biosciences in Delaware, USA.
| Function | Benefit in Skincare | Common Uses |
|---|---|---|
| Humectant | Attracts moisture to the skin | Hydrating serums, moisturizers |
| Solvent | Helps dissolve active ingredients | Exfoliants, serums, toners |
| Emollient | Softens and smooths the skin | Creams, lotions |
| Penetration Enhancer | Improves ingredient absorption | Formulas with Vitamin C, Niacinamide |
