I did an extensive bullshit-o-meter research. The only safe-ish combo is fenugreek seed and Tongkat Ali. Not guaranteed to do anything but there’s at least one white paper showing that it freed up testosterone.

My Johnson and Johnson has not shriveled into a stack of penis and also has not ballooned into an irresistible footlong. But I can report a definite increase in swimmers or blank volume. So it does do something.