Vegetable glycerine (VG) and propylene glycol (PG) wholesale: the bases for shops that also sell vape shots and concentrated flavourings. LOP offers VG and PG in 30, 120, 250 and 1000 ml bottles, often partly filled, such as 50 ml in 120 ml or 100 ml in 250 ml; Twinbase has Full VG and Full PG in 250 and 500 ml, TNT Vape Full VG and Full PG in 45 and 100 ml, VAPR. vegetable glycerine in 30 ml and Full PG 25 ml in 30 ml. Keeping bases next to the shots lets customers buy everything at once.