It's not like ashwagandha, tongkat ali, and forskolin all have human research showing increases in LBM and/or strength or anything...
I wouldn't say that the benefits of these ingredients are necessarily primarily the result of their test-boosting effects, but that doesn't make them any less effective. It's really much more than a "test boosting" product...
Any study that doesn't explain in detail how much of an increase in whatever was observed, for how long, and what it took to achieve that increase, can almost certainly be discarded.
Selenium improves sperm quality and testosterone in studies and also produces an observable effect, yet would it improve strength, muscle size or anything else desirable? Almost certainly not. At best it just gives a larger seminal load and improves libido like zinc does.
Ashwagandha is also liver toxic and has a myriad of different serious effects that range from worsening psychiatric disorders to temporarily causing them.
For the money spent on a few herbs that may potentially possibly help with weight lifting, you can probably buy two bottles of a legal hormonal product that without a doubt actually will give you strength increases and other benefits.
