Our supplier for all of our CBD oil is a highly reputable wholesale company in Colorado. I will quote from them about the testing done. “Third party laboratories analyze all of our full-spectrum hemp extracts and supplements for cannabinoid potency, heavy metals, bacterial/microbial life, mycotoxins (fungus), and pesticides. We have an industry leading quality control system, as evidenced by the 99% rating we achieved in April of 2018 for a 3rd-party cGMP audit performed by Eurofins Scientific, a world renowned laboratory testing organization. For comparison, 70% is a passing score. cGMP refers to the FDA’s guidelines for current good manufacturing practices. Dietary supplement manufacturers are not required by law to perform 3rd party manufacturing audits, but only need to undergo this process internally once a year. Our Company, however, strives to go above and beyond, especially when it comes to quality, safety, and the wellness of our loyal clients.” We at Tim’s Naturals are currently in the process of having all of our products 3rd party tested to ensure quality and potency.