DHEA will convert to testosterone in the liver in women, but not nearly as readily in men. It is a good libido booster for women, and can assist, to a limited degree, in muscle building in women.
No amount of DHEA is going to increase testosterone in men. There is a lot of evidence it has immune boosting effects so it might be worth it for that reason. Here is a quote from a study of the effects of DHEA on testosterone:
"Acute administration of 50 mg of DHEA and chronic administration of 150 mg DHEA/day did not increase serum testosterone concentrations in young men. Increases in serum testosterone concentrations after DHEA administration have been observed in women (21, 25, 27-29, 39) but not in normotestosterogenic men (21, 27, 28, 30, 39). For example, Morales et al. (28) observed a 203% increase in serum testosterone concentrations after ingestion of 50 mg of DHEA in middle-aged women, whereas serum testosterone concentrations were unaffected in men. Furthermore, daily doses of 1,600 mg of DHEA have not increased serum testosterone concentrations in healthy young men (30). Taken together with the present results, these data suggest that oral DHEA supplementation may increase serum testosterone concentrations only in postmenopausal women."