Propylene Glycol and Vegetable Glycerin Combo 2-Pack: one PG and one VG, 500 mL (1.06 Pint) Each — Food-Grade Kosher Liquids — Dispensing Caps Included: Amazon.com: Industrial & Scientific
USP Grade Vegetable Glycerin (VG) - Wick and Wire Co Australia
E-Liquid Considerations: VG vs PG | ePuffer Vape Canada Blog