Eucerin Even Radiance Duo Ampoule

This is the Even Radiance Duo Serum from Eucerin, one of my favorite brands. It is divided into Step 1 and Step 2, so it effectively locks in both hydration and brightening; I use it well despite the slightly high price point. It is a bit disappointing that it is only 15ml, but I use it occasionally after returning from a trip because it feels like it replenishes my skin from within. I got quite tanned this time, so I bought it right away in case dark spots started appearing.