Under current California regulations, stores can sell only one ounce of cannabis, 8 grams of concentrate, and six immature plants daily to recreational users. Medical users can purchase up to 8 oz. of cannabis and 12 plants daily. Cannabis products such as tinctures, capsules and topicals are limited to a maximum of 1,000 mg per package for the adult-use market, but patients can purchase products containing up to 2,000 mg of THC per package.