According to this study, DHEA does nothing for strength/conditioning or testosterone levels. Nothing close to TRT which Hendo had used to knock people out. TRT was way worse as PED.

"In middle-aged men, no statistically significant effect of DHEA supplementation on lean body mass, strength, or testosterone levels was found in a randomized placebo-controlled trial"

Wallace, M. B.; Lim, J.; Cutler, A.; Bucci, L. (1999). "Effects of dehydroepiandrosterone vs androstenedione supplementation in men". Medicine and Science in Sports and Exercise