Where can you find the best delta 8 THC carts? A grocery store is not likely to carry delta 8 carts, delta 8 gummies, and delta 8 tinctures. That said, there are a number of online stores where you can buy delta 8 THC. Whether or not you have a medical card, delta 8 THC is legal in a majority of the states following the 2018 Farm Bill which legalized hemp and its derivatives.