As of April 2019, CBD extracted from marijuana remains a Schedule I Controlled Substance, and is not approved as a prescription drug, dietary supplement, or allowed for interstate commerce in the United States. CBD derived from hemp (with 0.3% THC or lower) was delisted as a federally scheduled substance by the 2018 Farm Bill. FDA regulations still apply: hemp CBD is legal to sell as a cosmetics ingredient, but despite a common misconception, because it is an active ingredient in an FDA-approved drug, cannot be sold under federal law as an ingredient in food, dietary supplements, or animal food. It is a common misconception that the legal ability to sell hemp (which may contain CBD) makes CBD legal.
^ Scott Gottlieb (July 30, 2019). "The CBD craze is getting out of hand. The FDA needs to act". The Washington Post. Retrieved July 31, 2019. ... many of the compound’s expansive benefits are fanciful, and in fact, the sale of much of the product is illegal under current law. The Food and Drug Administration must act to make sure commercial interests don’t strip away any legitimate value that the compound might have.
Buying CBD oil for pain online is problematical. A study from the University of Pennsylvania published in 2017 found that nearly 70 percent of products sold online do not contain the concentration of the oil listed on the label. The researchers bought and analyzed 84 products from 31 different companies and found that more than 42 percent were under-labeled, meaning that they contained more CBD than indicated. Another 26 percent were over-labeled, with less CBD than indicated. The researchers wrote that while studies haven’t shown that too much CBD can be harmful, products containing too much or too little may not give purchasers the effects they seek. In addition, the team reported that a number of products analyzed contained a significant amount of THC, which can cause undesired effects.
Tinctures – Typically tinctures are small glass or plastic “dropper” bottles that have cannabidiol oil mixed with a preserving solution such as alcohol. Tinctures were very a very common way to ingest botanical oils prior to the industrial revolution and are experiencing a resurgence in popularity as more people are looking for natural remedies. Tinctures with droppers allow you to put a few drops in your tea, under your tongue, or to bake the oil directly into your food.