I don’t find thus product usefull. I have much acne problem. Then I listen about erytope gel. I was using this proudect for last 15 months .but when I used this product my acne take too much time to be cured and whenbever l stopped using it for 2-3 day it stared again. I don’t know weather it doesn’t work or it didn’t work on my skin. But it didn’t help me out. May be it will work if I will use it for life long but it’s not possible to use a prosuct life time without any banifit.