Try Another Serum

I had not tried a lot of Pixi products when I picked this up. I wanted a retinol serum, and liked that it also had collagen. It really dried my skin, leaving flakes, etc. and I would get hard raised itchy bumps the day after using it.
I know retinol can be irritating and cause flakiness, but there are other products like Olay's Retinol 24 that don't cause these problems for those of us with sensitive skin.