7-keto-dehydroepiandrosterone (7-KetoDHEA, short for 7-KetoDHEA), over the past decade, a large number of studies have shown that 7-ketodHEA, or 7-KetoDHEAAc, has stronger physiological activity than DHEA. In particular, it has a strong effect on anti-aging, enhancing immunity, improving memory and enhancing brain function, preventing Alzheimer's disease and diabetes, reducing the risk of heart disease, losing weight, increasing bone density and muscle vitality, etc. Besides, it is not metabolized into sex hormones (including male and female sex hormones) in the human body, without toxic side effects, and is more effective and safe than DHEA (refer to relevant literature)