This Clarins Double Serum was another very promising sample, ruined by bad packaging. The idea seems fine, but in the practice it was just a mess.
One of the products has a very liquid consistency and the other one is thicker. Once I poured out most of one run out through my fingers and then the ratio was not correct anymore. The serum itself seemed O.K. but nothing too special. Sample size was not great, and after the packaging malfunction it was anyway hard to properly try the product anymore.
I still think it is a very interesting product, and I would like to try it out again on better circumstances. I hope I get the chance soon.
Would I buy it based on the sample? No, but I would be interested in trying out again