If you get a buildup of -none on your skin, can it be washed off in the shower? With hot water + soap, maybe a couple times? I’ve used a shot of ammo for the past two or three days now and I don’t feel like there’s any negative effect, but I definitely don’t want any bad buildup happening.
Soap and water works for me.
There is more here: the extent of others' conscious awareness?
Soap and water and scrubbing is good.
Hydrogen peroxide 3% is very good.
Nioxin shampoo is excellent.
Oxy-Clean is excellent for clothing.
Lion makes a -none blocking deodorant:
Lion Elucidates Mechanism of Androstenone, Male Body Odor Causative Factor
Don’t overcomplicate things with the Nioxin shampoo and hydrogen peroxide. I know I did that whole thing before, but honestly, that’s overkill. Just simple soap and water is fine. Don’t expect it to go away like magic and understand that it does build-up. Once you understand that, you’ll adjust to it and know when to use how much when you expect some build-up to already be present, etc.
Build-up is really not so bad. In fact, it can work to your advantage. I almost like the-day-after build-up of -none to be more congruent with my persona than the first day of wearing it fresh. It’s like it blends into you when it builds up and it’s more subtle.
And, some times you may think you have build-up when you really don’t. So just don’t worry about it that much. If you have build-up it won’t kill ya.
I just stop using -none products for a day or two.. seems to work for me.
Where can I find some informations about buildup?
I rarely do more than rinse, but sometimes a ‘blank canvas’ is desirable.
Yep. And lasagne tastes better a day or two after it is baked. 
I’d be curious to know how much planning ahead people do. I have a 10 mcg per spray bottle of -none. A single spray to the crotch area is best about 36 hours ahead of the time when a nose might be intimately close to that area. 