I tested an area.....and did 2 layers, it frosted and looked ok...so I went ahead. I woke up this morning and one side of my face where I applied it 2x where I had bad age spots, age 46, and it is a puple color.......I am hoping to god that this is not a scar.....I have had a peel under the eyes before and it is red and then flakes off. This is a purple color???? It does not hurt or anything.....so I'm hoping it will fall off or heal..How will I know thanks. Dianne