CBD products could potentially show positive for THC in a blood test. Full-spectrum CBD, that naturally is produced by the hemp plant, contains up to .3% THC (a very small but beneficial amount). Full spectrum is considered the most effective form of CBD. Broad-spectrum CBD does not contain THC and would not show up on a THC drug test. We use full-spectrum CBD and CBG in our Balance gummies and tincture because it works the best!