Study finds mislabeling in nearly 70% of cannabidiol products sold online If you want to get the benefits of CBD, spend several hours at least researching companies, even calling them to get a feel for their legitimacy. Unless the product can be verified as having been made in the US, I would not use it. Being made in America or another country with a functioning quality control system is no guarantee either. If you don't know the source, it might as well be used motor oil capsules. There's growing number of high CBD strains levels above 10%. It's so easy to make your own potent capsules from bud that are 10 times cheaper per milligram compared to CBD oils sold online.