There is no good natural testosterone booster.
Some may help you sleep, some may increase libido, some may affect mood but NONE will have any affect on muscularity.
This is why in the history of natural testosterone boosters there is not one single credible comparison pics of improved muscularity.
Its really the most offensive scam in the supplement industry. The same ground up leaves rebranded time and time again with higher and higher price tags.
Tribulus
ZMA
DAA
Longjack
Tongkat
Fenugreek
Plant sterols
Etc, etc...
Ive lost count of how many times on one forum or another a user posts enthusiastically about one or all of the above mentioned supps. "Hey I just started this or that. Nothing visible yet but I have that "On" feeling in the gym. That alpha feeling. I'll post progress pics....
Next week: still feel good , havent noticed anything yet but i feels like its working....
Next week: im going to increase from 2 to 4 pills a day... (still no progress pics)...
Next week: nothing
3 months later: bump hey did you ever make any progress?
No response
End/thread.
Repeat.
Ad nauseum.