Can you do a serum GH test? Privatemdlabs or discountedlabs will send you a script for about 50 bucks. You can gauge if it degraded by how high your serum levels spike. It's not perfect but very good for telling if the HGH is useable, potent or bunk.
You pin 10 IU in one shot, and get blood drawn at 3-4 hours. You would want a minimum of 15, but 20 and higher are good numbers.
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