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Propylene glycol - Wikipedia
What Is Propylene Glycol, and Is It Safe for Your Health? - WebMD
Propylene Glycol: Uses in Food, Cosmetics, and More - Verywell …
Propylene Glycol in Food: Is This Additive Safe? - Healthline
Propylene glycol | Description, Formula, Production, & Uses
Propylene Glycol in Skin Care: Safety, Benefits, Side Effects
Propylene glycol | Formula, Properties & Application
Propylene Glycol - NIST Chemistry WebBook
The Complete Guide to Propylene Glycol - Positive Health …
Is Propylene Glycol Harmful to Humans? - MedicineNet