i’ve been reading posts about usage of pheros, and it can built up 'none.
what is it? and how to get rid of it?
Hydrogen Peroxide dont get it on your clothes mind
Androstenone. The primary masculine sexual signalling pheromone. Also signals dominance and causes aggression at high levels. It is very difficult to wash off, so over a course of several days worth of application of a pheromone mix containing it, it can build up and become an overdose.
To avoid an overdose this way, you can shower after using it, wipe the area with hydrogen peroxide (which destroys it chemically) or stop using it for a while.
i clean my applications points daily with hydrogen peroxide to prevent buildup. never fails. 
Hydrogen peroxide for me too.
I don’t do anything but shower (twice daily) and all is fine.
same here