I am sure that you can build tolerance, but I haven't noticed it becoming an issue. How much have you taken in these three sessions? Are you experiencing tolerance, or just concerned that you might? How much do you WANT to use MXE
I think that there is a certain level of mental tolerance to the effects of MXE (getting used to what it does). But actual physical tolerance has not been an issue for me, keeping doses relatively low and spaced out. I think somebody should also drop a warning in here about MXE having some addictive potential, it blocks the re uptake of dopamine
and creates a very nice body high; so you might want to limit use a little anyway. I'm not sure if you can develop a physical addiction
to it, but it is very closely related to Ketamine
(the only addictive psychedelic
.... by popular opinion).
You might also find that MXE gets a little boring, my cat and his kittens found this... But have fun and explore it yourself, if you find that your developing tolerance you can always take a break!