What it is
Decylene Glycol is a glycol with a longer carbon chain than common preservative-boosting diols, giving it both conditioning and antimicrobial-supporting properties. It is used in cosmetics to condition skin and to enhance the efficacy of preservative systems, which can allow lower levels of traditional preservatives. It is typically present at modest concentrations within the formula base.
Safety & warnings
Decylene glycol is generally well tolerated at the low levels used in cosmetics; as with any ingredient, sensitive individuals may occasionally react.
Origin & sourcing
Synthetic; manufactured as a defined diol (1,2-decanediol) for cosmetic use.
Questions everyone asks
What does decylene glycol do in a product?
It conditions the skin and supports the preservative system, which can help formulas stay stable while using lower amounts of traditional preservatives.
Is it the same as propanediol or pentylene glycol?
No. It is a longer ten-carbon diol (1,2-decanediol); the longer chain gives it stronger antimicrobial-supporting behavior than shorter glycols.