I can only report positive. The ridge separates perfectly, every day. I do not make-up with me mascara from, but every day about it (yes I know we should not actually do) without the comb stick the lashes after a while but so far I still had abschminken the week at least once. With the crest I do not have that now, excess mascara is removed, the eyelashes are great isolated, yet very voluminous and long. Looks great! Incidentally, I do not know, the force with which other reviewers ramming this comb in his eyes, he is dangerous in my opinion is not, and even if you take a little slip off, this really is not dramatic. Full 5 stars!