6 Frequently Asked Questions about THC-O What is THC-O? THC-O is a cannabis supplement that is intended to help you get the health benefits of marijuana, without exposing yourself to any risk. It can be hard to find legal cannabis products in some areas, so THC-O provides an easy way for people who are interested in trying it out. This product is made with a potent blend of … [Read more...] about 6 Frequently Asked Questions about THC-O