Dispensaries may sell a variety of “CBD-rich” products that are high in CBD and relatively low in THC, including oils, tinctures, topicals, and vaping liquids. They may even sell buds or flower from marijuana strains that have been bred to have very low levels of THC, says Michael Backes, author of "Cannabis Pharmacy: The Practical Guide to Medical Marijuana" (Black Dog & Leventhal, 2014). For example, the strain “AC/DC” can be just 0.5 percent THC, barely above the cutoff allowed for CBD from hemp and much lower than the 20 percent or higher THC concentration typical of most marijuana strains, Backes says.
Returning to our CBD article, Dr. Jean Talleyrand, founder and Chief Medical Officer of MediCann in Oakland, California, and co-founder and Chief Medical Officer of The Clinical Endocannabinoid System Consortium in San Diego, California, emphasizes that any “product should be evaluated for its packaging, shelf life, and variance,” as well as third-party testing, which will show strength and purity.
HempWorx CBD is an interesting brand that has no issue with transparency in terms of how they operate as a business, and where they source their raw hemp plant material from. Also, one of the main things that stands out to me as that they’re one of the only companies I know of that offers specific dosing guidelines for a range of serious medical conditions. This is a bit odd, however, as they also make it clear that CBD is not approved by the FDA as a medicine, and thus none of their products are designed to “treat, cure, or prevent” any disease.