Does anybody know how long the oil stays active? One message referred to the oil on sandals lasting over a year. Is there any scientific word on the subject? From the bizarre pattern of sores going down my right then left side, I think I had PI on my right hand when I applied sunscreen before kayaking. Will the kayak seat (and the sunscreen bottle) be dangerous a year from now? Would leaving something in the sun break down the oil? Fascinating, eh? |