Cordyceps Mushroom Powder from Organic Mushroom Nutrition is a 100% organic mushroom powder that delivers 2 g of cordyceps per serving. Cordyceps (Cordyceps militaris) has become popular because of its ability to help support stamina and endurance during physical activity, and it also helps with exercise recovery due to the role it plays in oxygen delivery and energy production. Cordyceps is also a natural antioxidant source that helps the body defend itself against free radicals.