I am not sure, I tried figuring this one out on my own awhile ago. I went to a paint shop and they would not sell me percipitated sulfur and they rubbed me the wrong way for asking. You can buy this stuff called palm de fluer or something like that, the problem with this is a tiny jar is about 10$ so it would basically take you 3000 dollars just to treat yourself over the 7 days that they require you to wear the sulfur on your whole body. If you do kill your scabies I suggest using a good skin exfoliator or tar coal soap for the post scabies.