Generally, the strength of CBD products is measured in milligrams (MG), and some products advertise a higher potency than others. Standard CBD products have potencies that range from 500mg to 3,000 mg. For a CBD product to be considered “High-Potency” it should have more than 3,000 mg of CBD. The strongest CBD in the world has 9,000 mg of CBD in a 30 ml bottle.