PG vs VG small

Propylene Glycol vs Vegetable Glycerin

Propylene Glycol vs Vegetable Glycerin So I know there has been many doubts or questions about the differences and safety  factor between Propylene Glycol and Vegetable Glycerin. So I thought I’ll search the net a bit and I found these two sites very interesting, apart from Wikipedia, which I found very detailed, so much so that I couldn’t understand […]

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