Colorado-grown hemp makes Populum’s top CBD oil one of the best in the US. According to their product reviews, the best use is for sleep issues, fighting cancer, depression, pain, anxiety, panic attacks, pain, and migraines. The Tempe, AZ-based Populum performs independent third-party testing routinely, and these lab results are available on each product link. Because it’s difficult to decide whether full spectrum cbd oil is right for you or not, the company offers a risk-free 30-day trial period for their customers. Not only does this help consumers determine which products will work best for them, but it also allows them to learn more about how their body will react.