Question: what is pg and vg?
Answer: Understanding PG and VG The base of all e-liquids is comprised of VG – Vegetable Glycerine, and PG – Propylene Glycol. ... PG (Propylene Glycol) is an odourless, colourless liquid which is thin in consistency. Its presence in e-liquid provides the 'throat hit' which is often likened to the sensation of smoking.