Here's my issue....(And for reference my rat has used both gw501516 and EPO). Right now you can get pharma epo or gw from a million and one sources and you know it is dosed properly. This new compound is available in bulk powder form on a few Chem sites, how do you know what you're getting is what they say it is? Granted this is a chance you take with any research but ill stick with the proven drugs that have been around and are readily available. And in my experience gw501516 has nothing on epo.