I have been running tesamorelin for a year and the honest summary is that the effect is smaller than the internet suggests and real.
The comparison group matters more than the compound when the outcome is something as fuzzy as focus.
Cold storage, light protection, and a date on the vial. Boring, and it removes half the variables.
Loose evidence is not the same as no evidence and people overcorrect in both directions.
Water retention and mild lethargy in the first fortnight are the usual pattern.
Would like a narrow answer rather than an enthusiastic one.
Read methods.
Where does the human data stop and the extrapolation begin? That is the whole thread. Lethargy in the first fortnight was my main issue with tesamorelin too.
Stupid question: how do you know whether what is in the vial matches the label at all?