THC Vape Pens: Health Effects and Safety Insights You asked we answered! Vape pens and cartridges are legal in Texas, but only through the Texas Medical Marijuana Program (TCUP) as of September 1st, 2025. That means only qualified Toxic metal particles can be present in cannabis vapes even before the first use American Chemical Society Stores sell supplies for fake, maybe dangerous, cannabis vapes Los Angeles Times Vape Cartridges and Batteries GraniteLeaf Cannabis New Hampshire's Premier Therapeutic Dispensary Vaping and Marijuana Partnership to End Addiction