I can only reply to this on a technical note:
Anderosterone (R-Andro) is a neuro steroid that also has the ability to convert to DHT...this hormone provides some great neurological benefits and also helps by converting to DHT without the need for 5AR.
Super 4 is 4-DHEA - this pro hormone has the ability to convert to actual testosterone, and also converts to estrogen (yes, sometimes you want that)...it can also convert to DHT via 5AR.
Ultra Hard contains Androsterone (R-Andro) and Epiandrosterone - Both of these compounds are quite similar but they each have very distinct nuances - They both are neuro steroids and pro hormones to DHT (via different pathways).
If you're curious about 4-DHEA, there's also Alpha Four by Iconic Formulations that contains 225mg 4-DHEA and 100mg Androsterone
For a quick cheat sheet on most of these ingredients:
What is the difference between DHEA 1-DHEA 4-DHEA R-DHEA and 7-DHEA? | androseries