Well it is well know in the industry that blood test do have merit. your igf 1 should be above normal if you are taking exogenous hgh as the peptide will convert in the liver over time causing higher then noraml igf 1 levels and that is not just made up it is a fact.
It Is really not the standard anymore. If you want your claims to have any merit you have to send it for testing. Otherwise there are too many variables in igf1 levels from person to person.
I've been on their hgh for a year and it definitely works. Have used other more expensive brands that are well reviewed here and had the exact same results.
There are many others here with the same experience as I, so you should probably get some hard evidence if you want to be taken seriously.