Propanediol (1,3-Propanediol) is a natural-derived humectant and solvent produced by fermentation of corn sugar. It provides lightweight hydration, improves ingredient solubility, and has a smooth, non-sticky skin feel. It is a sustainable alternative to petroleum-derived propylene glycol.
Key Skin Benefits
+ Lightweight, non-sticky hydration
+ Excellent solvent for actives and extracts
+ Enhances preservative efficacy
+ 100% natural-derived (Zemea® grade)
Pros
+ Sustainable, corn-based fermentation process
+ Superior sensorial profile vs propylene glycol
+ Non-irritating, non-sensitizing
+ Biodegradable and environmentally friendly
Cons
− Higher cost than petroleum-derived glycols
− Can increase formula viscosity at high levels
− May require preservative adjustment as it boosts efficacy