I have Vitiligo and do narrow band UVB light therapy 3x per week. I have tried so many sunscreens, and I really like this one. (Just bought my second jug!) Though I'm a little torn between "Chemical" sunscreen and "Natural" (normally meaning Zinc), I must say this stuff rocks. It feels so smooth any hydrating, absorbs quickly and has a faint but pleasant smell. My dermatologist said if I'm going to use a chemical sunscreen, don't put it on my face, and I'm ok with that. It's just so nice to not have white streaks, and if I can't wash the (head to toe) sunscreen off after my sessions I can go about my day w/o concern. Also, love the ease of the pump!