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 ingredients 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.