first time doing a review on this brand. They go by GP. I tried their primobolan. Its called GP Prima and the first thing I noticed was how smooth the injections were not like the typical Primo I was used to using. this stuff is fantastic getting lean muscle mass gains. feel amazing on this cycle. they have fast ordering no hassle. delivery is amazing all the vials arrived no problems. ordered primo and test. results are impresive lean gains 5 pounds solid.