United Kingdom based, MRL was founded in 1997 and develops mycology (mushroom nutrition) and non-mycology products as dietary supplements or "functional foods". Proven Effective For more than 3000 years the Chinese and Japanese have been using mushrooms such as Coriolus for immune support and for improving health and overall quality of life. These mushrooms are famous their strong antioxidative, detoxifying and immune modulating properties. MRL utilises proprietary Japanese production technology to cultivate selected strains of the different mushrooms in California. The strains have been selected for their overall bioactivity and for their stability (purity).