I was looking for a retinol , not too strong and OTC a while back. So my mom had a tune of strivectin advanced concentrated serum that she wasn't using, I tried it about 4 nights ago. I think I can see some results believe it or not, my pores do look smaller and my skin is soft. I used maybe a pump and a half ( they are tiny pumps). It didn't burn or sting but I don't have particularly sensitive skin. I'm going to continue to use this as long as there is no irritation.
http://www.ulta.com/advanced-retinol-concentrated-serum?productId=xlsImpprod10141114&sku=2275001&CPMID=CSBING&CAWELAID=330000200000136683&catargetid=330000200000693114&CADEVICE=t