Dhea (Dehydroepiandrosterone) is an endogenous hormone produced in the adrenal glands, gonads, and brain. It plays a key role in numerous bodily processes including working as an androgen and neurosteroid. Natural Dhea levels peak in one's mid 20's, and decrease rapidly as one enters middle age. Taking Dhea as a supplement can help support your overall health as Dhea levels begin to decline.