I remember when Retinol was first advertised. It could only be obtained with a doctor's prescription. I saw amazing results when a friend decided to try it. It did not take long before she looked 25 instead of 45. I'm not exaggerating. This woman was lovely, but she had a face full of wrinkles. She was blond and a sun worshiper even then. I don't want to go to a physician as it is costly. Since over 15 years have passed I am hoping a non-prescription product, with a truly effective amount or Retinol A, might now be on the market. If there are such serums available, is there a number to indicate the amount of Retinol they contain? Thank you for any advise or suggestions. Deja