propylene glycol dibenzoate

Propylene glycol dibenzoate is a diester combination of the humectant propylene glycol and the preservative benzoic acid. A diester is a chemistry term that means an ingredient formed from two separate esters, resulting in an ingredient that has a different form and result.

In this case, combining esters of propylene glycol and benzoic acid results in a fluid ingredient that works as a lightweight emollient to soften skin and helps prevent moisture loss.

Propylene glycol dibenzoate is a synthetic ingredient that is sometimes used as a silicone replacement. Due to its high refractive quality on skin, it works well to reflect light, creating the look of a healthy glow.

References for this information:

International Journal of Toxicology, September-October Supplement 5, 2012, pages 245S–260S
International Journal of Toxicology, Supplement 3, November-December 2017, pages 5S–30S

See ester propylene glycol

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