Very interesting. I'm white enough that I get made fun of for it from my family and my body hair as pretty much as black as it gets but it just didn't seem like it worked...

I also never got any razor burns (tho in all fairness, I only really used it for me legs and face). Maybe my unit was just defective?

It seems that IPL effectiveness varies a lot based on the texture of the hair, not just color. It eventually worked on my legs, but not my face.