This has been around in Europe for awhile. What I understand is that you still can lose up to 50% of your hair. And who would want that? I would rather shave it all of and get a nice wig, which is what I did. I don;t think it is the most comfortable thing to be wearing a neoprene ice cap either. Also, I would wonder about chemo getting up to the scalp because there is such a thing as metastases to the skin of the scalp.