This app reminds me of that personalized sunscreen I used to see on t.v where the company made like 36 different kinds and the person was supposed to be recommended by a doctor what sunscreen to use . People being so diverse couldn't possibly all fall into one of the 36 different categories of sunscreen and the odd ones out must have had some negative side effects. Wonder how the company solved that one without major hassle. Either it was sunscreen or some type of lotion or something like that don't recall fully.