Hi, This is my first post so hello to all. I have been using doctor prescribed test. cyp. for a few years now. I do 1cc weekly of the Watson 200 mg test. My doctor left town so before I ran out I ordered some Grexco labs 250mg test. online. I was told it was real stuff but not so sure. I have been doing 1cc weekly of it and it does not seem the same. my sex drive is not near as good and have a harder time getting a boner. Could this test. be alot weaker than the real Watson brand and should I do more weekly? Iam 57 years old and want my libido back. If anyone has any info to advise me please do. Thanks in advance