Propylene Glycol
A moisture helper.
What it does
Draws water into skin and helps other ingredients dissolve and spread evenly.
Good to know
Very widely used in skin and hair care. Dermatology studies show it can cause skin allergy in some people, so sensitive skin may react.
Often found in: Shampoos, Shower gels, Deodorants
Around the world
- United States: No FDA limit. The FDA doesn't approve cosmetic ingredients before sale. Source
- EU and UK: No special limit in the EU or UK. Source
- Canada: Not on Health Canada's Hotlist of restricted ingredients. Source
- Australia: Listed in the Poisons Standard as not needing any controls. Source
Sources
- Propylene glycol in contact dermatitis: a systematic review (Dermatitis, 2018) (Medical)
- CIR: Safety assessment of propylene glycol, tripropylene glycol, and PPGs (2012) (Industry-funded)
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