It could irritate a litltle bit but if it burns, it could be that you're using too much BP to begin with or maybe to have a allergic reaction to it. So I recommend lowering the dosage until you find something's that's suitable for your skin type.

The reason I never gave the regimen a serious try is the way BP burns my skin - and the burning sensation doesn't go away when it dries, btw.

Maybe you have a thin and fair skin like me, then it's really sensitive to BP

I do have quite sensitive skin. This morning it didn't burn as much as usual, maybe I'm getting used to it. I'll try and start using a little less as well I'm using as much as the video recommends for people just starting out.