The efficacy and effect of lock yang 1, the effect on immune function; 2, scavenging free radicals; 3, anti-platelet aggregation; 4, with glucocorticoid-like effect. Clinical use of lock yang main treatment: impotence and premature ejaculation, yin failure and blood exhaustion; weak qi and yin deficiency, dry stools, frequent urination, hematuria, dribbling; lumbar and knee weakness, fatigue; fear of cold and cold, pain in the limbs; menstrual disorders, uterine cold and subluxation; women's infertility, men's infertility; insomnia and forgetfulness, hair loss and early whitening, gastric acid ulcers and so on. The latest medical research found that lock yang can promote human cell regeneration and metabolism, enhance immune regulation ability, with obvious anti-cancer, anti-virus and slow aging effect. In recent years, the use of lock yang treatment of prostate hypertrophy and hyperplasia, treatment of leukemia, treatment of diabetes, treatment of asthma, treatment of premature ejaculation have achieved very good results.