Nature's Method CBD : Figuring out how much CBD works for you will depend on multiple factors, including your weight and the product’s potency. You can now buy CBD strengths of 1,000 mg to 10,000 mg per bottle. Not every customer is the same, and this especially holds true when customers are shopping for CBD oil. There are three main types of oils with differing cannabinoid and terpenes contents. Here at Industrial Hemp Farms, we carry the best-priced CBD oil.