I’ve been on 10-15mg of Tren for at least the last year or so, mostly with TRT. Bloodwork is perfect and I have no negatives. Honestly, I kind of use Tren as a “nootropic” in that even a little amount helps me be much more logical, calculated, stoic, and productive. And a great boost in libido compared to TRT alone. I haven’t not been lean in years now, tren or no tren, so not sure how much it helps, but I don’t think it will be a magic bullet. But for me a micro dose of tren is “safe” and doesn’t cause me any issues