Think of DHEA as hormone support for healthy aging and an active lifestyle. DHEA decreases by up to 80% throughout adulthood. This isn’t a supplement reserved only for your grandparents though, as levels begin to decrease around age 30. Recent studies show that DHEA is involved in a large variety of physiological processes, including immune function, brain function, bone metabolism, blood lipid metabolism, and energy metabolism. Low DHEA levels have been associated with heart disease, depression and mortality. Liv DHEA at 25mg was made to ensure that it is effective for all men.