The PG (Propylene glycol) and VG (Vegetable Glycerin) are the two primary base ingredients of eliquid. They are all FDA approved and are equally safe. The PG is a clear, colorless liquid E liquide 50 50, eliquide franais 50 PG 50 VG, e liquide 50 50 fruit ou tabac Fifty Le M 50ml Liquideo E liquid Fifty Salt E liquide 50 50, eliquide franais 50 PG 50 VG, e liquide 50 50 fruit ou tabac BASE NEUTRE 1 litre 30PG 70VG EXTRAPURE Le Vapoteur Marocain