DHEA as a standalone is useless. However, some people advocate the use of it during PCT. I don't because it is exogenous hormones and the whole point of PCT is to get your body producing its own hormones again. Another angle you could explore is the pulse method, where a PH/PS is taken 3 or 4 days per week and DHEA is taken on off days from the PH/PS. The DHEA is said to help control cortisol levels to allow the pulse method to work properly. One of the analogs (7 oxo Dhea) acheives the same cortisol control without any androgenic sides. DHEA is not even in the same category as the steroids and legal PH's that do require a PCT. I would encourage you to do some research on the pulse method,DHEA, and 7oxo dhea. Search these forums. There are numerous insightful threads available on these topics.