I came across this product when my mum got it and found it didn't work for her, so I gave it a go as well and found the same thing.
I guess you could say it is a serum as its got that kind of consistancy and texture.
You only need a few drops each night and then massage the product into the skin.
After doing this for many weeks there didn't seem to be any improvement to the skin other than that it made the skin feel nice and soft as you were applying it and straight afterwards.
I also thought the product was hideously expensive for what it was, though I wasn't entirely surprised given the brand.
I was lucky enough to win a bottle of this Estee Lauder ANR and a pottle for eyes aswell. I was so excited, because I cant afford to spend that much on skin care. After using the whole lot, I didnt notice one single change in my skin. No reduction of lines or discoluration, nothing. I was so disappointed as this is supposed to be one of the best products for ageing skin. I most definately wouldnt buy it and thank god I didnt!