What it is
Propylene glycol dibenzoate is the diester of benzoic acid and propylene glycol, valued for its light, spreadable emollient character. In sunscreens it can act as an emollient and solvent that helps dissolve and carry other ingredients while giving a smooth feel. Esters of this kind can also serve as plasticizers that improve the flexibility of film-forming components.
Safety & warnings
Benzoate esters of this type are generally well tolerated at cosmetic use levels. As an ester emollient it is not classed as a fragrance allergen, and it is generally considered to have low comedogenic potential, though individual responses can vary.
Origin & sourcing
Synthetic ester produced from benzoic acid and propylene glycol.
Questions everyone asks
What is propylene glycol dibenzoate used for?
It is used as a lightweight emollient and solvent that helps dissolve other ingredients and gives a smooth feel on the skin.
Is propylene glycol dibenzoate a preservative?
No, despite being a benzoate ester it functions mainly as an emollient and solvent, not as a preservative.