No, you cannot market therapeutic claims about CBD oil. The Food and Drug Administration (FDA) hasn’t approved any of the claims being made about the curative properties of cannabidiol, so you need to make sure you don’t make any promissory claims.
In 2019, the FDA issued a warning letter to Curaleaf to stop making claims that their products, “prevent, diagnose, treat, or cure serious diseases.” Until the FDA tests and approves any medical claims, you cannot make them about CBD products.