Long post, sorry. Zadaxin (thymosin alpha-1): what actually has human evidence behind it, and what is extrapolation from animals?
Two weeks is not enough time to attribute anything to a compound unless the effect is dramatic.
The effect size I actually noticed is roughly a third of what the write-ups imply, and it took four months to be sure.
The comparison group matters more than the compound when the outcome is something as fuzzy as focus.
Sample size, blinding, and who paid for it. Those three questions kill most of the confidence in most of these threads.
Animal data is much of what exists here and the human stuff is thin and small.
Where does the human data stop and the extrapolation start?
How long before you can reasonably say something is or is not doing anything? Currently on thymosin alpha-1 myself.
Sleep, food, or the compound? Yes. Not on thymosin alpha-1 but the pattern is familiar.
Is a baseline blood test really necessary before starting something like this?