“Registered with” is doing an enormous amount of work in that sentence.

Half of what people describe as tolerance is a change in the underlying condition, and the two need different answers.

Where does the human data stop and the extrapolation begin? That is the whole thread. Same for me with sermorelin, unfortunately.

Half of what people describe as tolerance is a change in the underlying condition, and the two need different answers.

A certificate of analysis answers one question and gets quoted as though it answers four.

A certificate of analysis answers one question and gets quoted as though it answers four.

Reference ranges differ between labs, so comparing two reports is close to meaningless.