RE:1067 permanently removed my dark spotsI tried it as well when it first came out and it was equally effective for me - aging spots on hands etc. This was not the case for everyone.
The Allergan licence has a much stronger concentration so I can imagine why they pounced on it, Allergan Skinmedica is premiere tier line and it ain't cheap. A royalty on the gross sales unit price could be very interesting, to be determined.