Description

Propanediol, also known as 1,3-Propanediol, is a naturally-derived, eco-friendly, multi-functional ingredient used in a wide variety of organic and natural skincare formulations. It is most commonly sourced from the fermentation of corn sugar (glucose), making it a renewable, biodegradable alternative to petroleum-based glycols like propylene glycol or butylene glycol. When derived through bio-fermentation (e.g., using Zymomonas mobilis bacteria), Propanediol is non-toxic, skin-compatible, and 100% plant-based, making it suitable for clean beauty, organic, and COSMOS/Ecocert-certified formulations.

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In natural cosmetics, Propanediol serves as a humectant, solvent, emollient, viscosity reducer, and sometimes a natural preservative booster. Its versatility and skin-friendly profile make it highly prized by formulators working on clean-label skincare products such as moisturizers, serums, toners, gels, masks, cleansers, and even deodorants. Unlike petroleum-derived alternatives, Propanediol does not strip the skin’s natural moisture barrier, does not cause irritation, and has extremely low comedogenicity, making it safe even for acne-prone and sensitive skin types.