The Cannabidiol (QuietMonkCBD) ingredient is in everything from pet products to drinks and chewable gummies. In some cases, the CBD in a particular product is clearly labeled, but often it’s not. That makes it difficult for consumers to make informed decisions about whether or not a product will work for them. In fact, a recent study found that 84 percent of CBD products tested did not contain the amount of CBD listed on the label.

Despite the growing popularity of CBD, experts warn that more research is needed on how it works to treat specific conditions. Further, it’s not clear how much CBD is needed to have an impact on a specific condition and how the dosage of CBD should be administered.

In some cases, a person may take too much CBD and experience unpleasant side effects. The opposite is also true—taking not enough CBD can be ineffective.

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It’s important to look for CBD products that have been third-party tested for quality and purity. Many trustworthy brands, such as Alchemy Naturals, post the results of their lab tests on their websites for consumer transparency.

As a supplement, CBD isn’t FDA-approved, but it’s legal in most states. In the US, there’s only one prescription CBD medication—Epidiolex—which is approved to treat rare seizure disorders in children. In general, though, there’s little risk in taking CBD by itself unless a person takes other medications that can interact with it and cause side effects.