Cannabis Dispensary in Willoughby Hills, OH Open Daily GAS GANG 2g VAPE POD Hydro Green Shop Because tobacco companies aren't required to tell us what's in vapes, we wind up being lab rats for their dangerous, addictive products. So, let's be clear (since Big Tobacco won't be) What's in an e liquid or vape juice? The main ingredients are propylene glycol (PG) and vegetable glycerine (VG). These are solvents that are basically used to dissolve and carry the other ingredients. Vape Flavors and Vape Juice: What You Need to Know Johns Hopkins Medicine