I tried it and nothing happened. Then, I was sent another package of it and billed eighty some dollars on my credit card. Three weeks later I was billed a different amount, about three dollars more (I don't want to take the time right now to look up the exact amounts) but was sent nothing. I called my credit card company and told them I thought Dermatage is a scam. The matter is in dispute. Chase says they are giving back some some people's money but not others. When I told the chase dispute person that I don't want them to pay Dermitage since I did mail the product back to Dermitage, they said "can you prove it?" I called later to say I could not find my proof of delivery slip. So, now I may be charged if Dermitage decides to stick by their story that they never did receive the package I sent them. It remains to be seen whether I will be charged for the product they didn't even send me. I can't believe I fell for this one!!