i did puritysourcelabs and ran it for 8 weeks. I was very pleased with the results which were pretty dramatic. Their service is also excellent. If you go on their website you can submit a ticket and they get back to you pretty quickly. I had a small problem when I made my order which was my fault and they helped me through it. great gear and cheap!. ordering is very easy to figure out. products were delivered good condition they pack it tight. ordered test, sust, anavar, halo. results are very good fat loss stack and my bloods confirmed they were good.