Supports Longevity. HPLC Tested for Potency and Purity. DHEA (dehydroepiandrosterone) is produced in the adrenal glands from pregnenolone and converts into testosterone estrone and estradiol. As we age our DHEA levels decrease becoming a factor in our overall health status. DHEA supplementation has shown the ability to support circulating DHEA concentrations similar to those experienced in younger years.