McGuire published his own study in August, in which CBD was shown to reduce psychotic episodes in people with schizophrenia. The daily dose was 1,000mg of pure CBD. And a study in which CBD seemed to ease anxiety, published in Nature in 2011, administered a single dose of 600mg, an hour and a half before giving participants a public speaking task. These larger doses contrast with that found in, say, Botanical Labs’ CBD drink. Rebekah Hall, the company’s founder, says her drink is for recreational rather than medicinal purposes and “the amount of CBD per batch is constant and precise, at 2mg per bottle”. A daily dose of two hemp capsules made by Nature’s Plus offers 15mg of mixed “plant cannabinoids” without a specific CBD count.
Many people take CBD oil for joint pain or even muscle soreness, but most would suggest that they are not as soothing or fast-acting as applying a topical CBD cream directly to the site of pain or soreness. Using a topical CBD cream for muscle soreness is also effective due to the simple mechanical effects of massaging. When you massage sore muscles, what you’re actually doing is stimulating the fibers in the contractile tissue to engage in capillary action; in other words, the fibers are actively exchanging expended blood and replenishing themselves with a new, freshly-oxygenated supply from arterioles.
^ Nadulski T, Pragst F, Weinberg G, Roser P, Schnelle M, Fronk EM, Stadelmann AM (December 2005). "Randomized, double-blind, placebo-controlled study about the effects of cannabidiol (CBD) on the pharmacokinetics of Delta9-tetrahydrocannabinol (THC) after oral application of THC verses standardized cannabis extract". Ther Drug Monit. 27 (6): 799–810. PMID 16306858.
Strain-specific topicals attempt to harness certain terpenes and cannabinoids in a chemical profile similar to that of Blackberry Kush, Permafrost, Blueberry, or whatever other strains the processor wishes to imitate. Along with THC, CBD, THCA, and other cannabinoids, topical producers may also select ingredients and essential oils for additional relief, like cayenne, wintergreen, and clove.
Cannabidiol can be taken into the body in multiple different ways, including by inhalation of cannabis smoke or vapor, as an aerosol spray into the cheek, and by mouth. It may be supplied as an oil containing only CBD as the active ingredient (no added THC or terpenes), a full-plant CBD-dominant hemp extract oil, capsules, dried cannabis, or as a prescription liquid solution.
Interestingly, the memo argues that while California is willing to challenge the federal government’s authority when it comes to legalizing cannabis, it’s not willing to challenge the federal government when it comes to hemp. The memo states: “Although California currently allows the manufacturing and sales of cannabis products (including edibles), the use of industrial hemp as the source of CBD to be added to food products is prohibited. Until the FDA rules that industrial hemp-derived CBD oil and CBD products can be used as a food or California makes a determination that they are safe to use for human and animal consumption, CBD products are not an approved food, food ingredient, food additive, or dietary supplement.”
Despite this, CBD is something nobody knows much about, and certainly nobody is monitoring it properly. CBD is widely marketed as a supplement, despite the Food and Drug Administration saying it does not qualify as such (this is because it is an active ingredient in drugs which are either approved or under investigation to be approved). CBD goes largely unregulated by the agency; on the FDA’s FAQ page, a vague answer maintains there are “many factors in deciding whether or not to initiate an enforcement action.” The Department of Agriculture handles research grants and pilot programs for hemp, but that’s where its involvement ends.