Now it's just a matter of procuring the capsaicin. In the video he uses a 40% mixture that he then diluted to 10% with isopropyl alcohol.
I have no idea where you might purchase such a tincture, but with all the hot sauces available today from mild to crazy insane, why bother?
You don't want her to have a bad experience on her first attempt, and even a tiny spill of 10% capsaicin could be a very intense experience for somebody that has never experienced hot before. I thinking that some practice with something mild like Tabasco would allow her to perfect her technique and I'll bet that after just a few days she'll notice some slight reduction of the pain. From there she can pick just how hot she wants to go.
I'm buying capsaicin powder and I need a organic solvent to dissolve it with. For that I've decided to use DMSO which I will then dilute with ethanal to the concentration that I want. DMSO is a great solvent, but it also has the ability to jump through skin to deliver whatever chemicals are dissolved in it deeper into the underlying tissues.
My target area is about 6" above and below the back of my knees. That's some pretty tinder skin and I'm thinking that a 8-10% capsaicin dose for 30 minutes will be somewhat unpleasant. The lidocaine is to lessen the unpleasantness.