No bloodwork. Started using narrowlabs about 3 weeks ago, one more week then I’ll break for 4 weeks and start again when I start tren. What I get most out of it is my stamina is thru the roof. There’s nothing like it and unless you’ve tried it, I can’t explain but you just keep going. The only downfall is I get used to it starting at 10mg then have to up it to 20mg within a week. Stay at the 20mg dose then I kind of peak and the benefits are lost for me. 3-4 weeks max break equal time and try again. That’s what’s been working for me. Usually dose around 7-8 am and start cardio, 10-15 min into you get an extra gear, 45 min into your in overdrive. Ya just keep going. I don’t notice any side effects from taking it, never have. As for it working as a fat loss pill, maybe, not what I use it for. I use it for endurance.