after hearing all the rave reviews this mascara got, i decided to buy something from lancome and got the gift which included a sample of the definicils.
I REALLY LOVE THIS MASCARA!! this one does not smudge on me, lengthens my lashes, defines and thickens it.
i would say that this is as good as CD L'ong Optic but better in a way that it does not smudge.
i would definitely purchase this one again.