"OK FWIW, I tried tribestan last year. I got lots of zits."
Because it probably increased your estrogen levels. Unless you have testicles, tribulus isn't for you. Even if you have testicles, there are better choices.
Yup, what Wilson6 said. Tribestan will only increase falling test levels if your have testicles. If you have ovaries, it will stimulate estrogen synthesis. In both cases there are far better drugs to take than tribulous.