Im willing to bet that a lot of the gear out there is either underdosed or not what it is supposed to be. The stuff I use now is US grade pharm, the best you can get. I felt the effects really in less than 7 days. It was like a miracle. It hit me faster than the stuff I used to get on my own. Even the stuff I got on my own though would kick in pretty damn hard by 2 weeks. Some of the crap I bought early on, yeah it took me almost 4 weeks to feel anything. Some of that crappy Brovel stuff hurt like hell and didnt kick in much for almost 3 weeks.