New science review on vape ingredients criticised for unrealistic testing
October 20, 2025 by clearingtheair.eu
New science review on vape ingredients criticised for unrealistic testing
A recent study suggesting harmful chemicals are released when vape liquids are heated has been criticized for using unrealistic lab tests. Harm reduction experts argue that real-world vaping conditions differ. Research has shown heating propylene glycol and vegetable glycerin may create toxic byproducts, but harm is minimal when vaped as designed. Human studies found no respiratory or eye issues from propylene glycol exposure. After over 15 years of vaping, no serious harm linked to these ingredients has been found. Extreme lab tests may mislead as users would avoid inhaling burnt vapor.
