Astazanthin, not clear about the spelling, it over a short time can help stop or lessen Sun burn. I helps a little for people on meds. It is my personal belief that its the meds that are causing the burning. This stuff is what makes flamingos pink. From experience take it in the morning or you might not be able to sleep. I have not taken it in a year, and I still don't Sun burn. I live near a reservation and people think I am an American Indian, if I am its like from one of those French fir trappers(cough cough) way back before our founding.

Great thread, and the post hits the nail on the head.