I received this as a sample. Absolutely LOVE this serum.it sinks into skin, Is not oily or sticky and works magic overnight! My skin appeared brighter, more refined and make up went on as if after using a primer.. will definitely be investing in this one! A little goes a long way. I'm always cautious about buying new products without trying as my skin is very reactive, like all dermalogica products I've tried I had no problem.