The Alchemist’s Kitchen and Clover Grocery are high-end stores that cheerfully tell customers where they source their products from and only stock brands with similarly transparent sourcing. This CBD usually comes from cannabis plants farmed in Colorado or Oregon, or, increasingly, states not normally associated with the cannabis trade. EarthE CBD, a prominent online seller of CBD products, for example, sources from local farms in New Jersey; it also publishes lab results on its website showing that its products have been tested to have no THC and the amount of CBD the company says they should have.
I tell several sellers of CBD food and drink what I learned from Blessing and ask what they think. “Return customers who come back, and swear by it and love it, buy two at a time to stock up for the week because they do find it to be very helpful,” says Tavares. Clancy echoes this: “We rely a lot on consumer feedback and testimonial, and generally it’s positive when taking that minimal amount. Now, that very well could be a placebo effect, but either way, people have come back and reported significant benefits when it comes to easing social anxiety.”
A 2016 review of animal studies indicated that cannabidiol has potential as an anxiolytic for relief of anxiety-related disorders and fear. Reviews of preliminary research showed cannabidiol has potential for improving addictive disorders and drug dependence, although as of 2016, they indicated limited high-quality evidence for anti-addictive effects in people. A 2007 study on aggressive breast cancer cells demonstrated that cannabidiol was found to reduce the growth rate and invasiveness of breast cancer cells by acting to down-regulate Id-1 expression. 
Most CBD oils are available in round-number concentrations such as 250mg, 500mg, and 1,000mg. While these strengths accommodate many CBD users, they may not be sufficient for those with preferences that fall outside round numbers. NuLeaf Naturals offers a less conventional selection of concentrations: 240mg, 725mg, 1,450mg, 2,425mg, and 4,850mg. This range ensures that most users will find a strength that works for them.