so after getting some unk adex from mpresearchsupply.com, i decided to try out some stuff from purchasepeptides after seeing some successful lab results with their exemestane. Have been running letro for 3 days now, and it seems to be working, i have to take it at night as it seems to make me extremely lethargic. If i dont see an improvement in my small amount of gyno after the weekend, i will be getting lab tests to confirm or not whether the letro is doing the job. As i said, so far it seems to, but in no way is this 100% confirmation that it is.