7-Keto is a natural derivative of DHEA that is claimed to be free from many of the side-effects of regular DHEA supplements. DHEA is dehydroepiandosterone, which is the most abundantly produced of the adrenal hormones. After production in and release into the bloodstream by the adrenal glands that are situated just over the kidneys, DHEA undergoes metabolism to the male androgen hormones, and the female estrogens.