ive bought a few bottles of glycobol, AP, PSlin, Na-rala, LG SLIN, INsulean K, glucophase XR and other bulk stuff like yellow gold , na-rala, banaba. and what it comes down to is that what i have found is the most efffective combination is using banaba, berberine and HCA. now ive only tried a 2 week supply of recompadrol which was a beta version but it blew me away, vascularity and pump was sick after large prewo carb meal, endurance was up, and a definate leaning effect was noticed in the mirror and by others within only 2 weeks of use. The combination of all my favorite ingredients plus all the others in it and the one ingredient "aminoguanidine" that ive never been able to find in bulk make it IMO the best right now. I tried need2slin for 10 days and i noticed i was bloated the whole time i took it and didnt like that at all.