Love it...
Yohimbine is a legal and a ethical substance in the USA and its use is permitted by sports governing bodies (IOC and NCAA).
My general yohimbine observations:
I have not been able to find a single sound study that supports weight loss claims or increased testosterone levels, improving muscle strength and mass.
It seems that yohimbine supplementation is safe but it did raise my blood pressure to a notable level. After using it for several weeks in high doses (50 mg per day vs. the recommended dose of 15 to 20mg per day), I noticed dizziness, headaches, and nervousness, but a notable increase in fat loss. I have yet to inject it or use the cream, but that is next.
BELL$