Time out
If you have already taken it before, it feels androgenic, it gives you insane stamina, increased libido, increase well being, more frequent boners ect.
Why the heck do you care if a study says it doesn't do those things? If it works for you then it works for you.
There are no studies that PROVE ANYTHING, there all just small pieces of information that point in a direction until another study comes along and proves it wrong, and there's always a study to come and counter the one you're reading.
This study says eggs cause heart attacks the next study says eggs are heart healthy.
The study says drinking alcohol is good for you the next study says the opposite
The study says fats good the next study says that's bad.
Your first hand experience, given that there is tangible evidence in your findings trump's any study you can read.
All of the effects you got from that product sound like it increases DHT for you. And if you want to know for certain go get your blood work done.