one other question. when applying the liquid, it is hard to keep within the confines of the thinning area. does it affect the normal, thicker part of hair in any way?
Just keep using it and you'll know something in a few months. I wish I could help with the sunscreen question. I just don't know. Minoxidil will stimulate any hair it comes in contact with and sometimes beyond that if it goes systemic. Good luck.