Xueyuan Cordyceps Soft Capsule has the functions of nourishing lung yin and tonifying kidney yang. Nourishing lung yin includes protecting respiratory organs from infection, relieving asthma and improving cough. Tonifying kidney and strengthening yang includes regulating hormone secretion and metabolism, enhancing sexual function, preventing impotence, improving climacteric syndrome, resisting chronic fatigue, strengthening physique and restoring energy. It is a traditional nourishing top grade, suitable for all seasons. I'm taking it. It's good.