I recieved this as a sample. It was smooth and didn't smell too strongly of citrus, and immediately absorbed into the skin with little effort. It was not at all irritating, and seemed to smooth my under eye for at least an hour or two. There was no immediate effect on my dark circles, but the skin did look a bit more refreshed.
Cost: $80 CAD per 15ml
I only recieved a sample which lasted me 3 days so I can't verify long term effects. There were no immediate problems whatsoever though. I'd be interested in trying it again, but it is at a very high price point compared to other vit c eye creams.