Founded in the United Kingdom 1997, Mycology Research Laboratories Ltd (MRL) markets 15 mushroom nutrition products in the form of tablets (500 mg) and powder (100 g and 250 g with 2 g spoon). Both cultivation and manufacturing comply to ISO 22000 standards. The powder forms are certified organic in the United Kingdom and Europe. MRL is focused on providing practitioners with clinical research that allows for the responsible use of mushroom nutrition.