Exactly how long does THC vape pen last? THC vaporizer pens last a lot longer compared to some other THC products. You are able to in addition check out recovery programs at rehab facilities for an set up way of healing. Just how can I increase its use? So, a normal THC vape cartridge holds about.5mg of THC. One THC vape cartridge commonly has.5 grams of oil. Based on the National Center for...