Yamamoto Research Cordyceps 30 capsules. Cordyceps is a food supplement providing 1000 mg/daily dose of cordyceps extract. It is also capable of improving endurance sports performance, increasing cellular bioenergy (ATP) up to 55%, translating into greater fatigue resistance. Cordyceps sinensis is a potent immunostimulant and certainly an excellent recovery medicine, useful in all cases of immune system difficulties. It is considered a powerful tonic and antidepressant and has been proved to be very useful in the treatment of insomnia and stress. It has strong antioxidant properties and protects the body from damage caused by free radicals, especially in the brain. In older people it favours greater vitality, better tolerance to cold and a strengthening of memory.