Receptors are constantly being produced,The thought of improving receptor up regulations
is not accurate information as I said they are constantly being produced.
There some compounds reportedly,That increase receptor sensitivity...
you posted this in the peptide section so maybe you are referring to gh? In that case we'd have to discuss the theory that it works locally in satellite receptors versus the theory that it works more through conversion to IGF-1. Before we get into that let's understand your question first.