I love how this overnight peel makes my skin feel! I was having a few stubborn spots of dead skin that wouldn't exfoliate off with microdermabrasion, so I decided to try a sample of this out. I woke up in the middle of the night and my face felt great - much smoother, with a good elasticity to it but some firmness on the surface. By the morning it felt even better, and the stubborn dead skin spots were gone. However, I didn't notice any results on the 'brightening' side of things - my complexion was pretty uneven. The skin texture looked great, but not so much the color.
I also had some very minor eye irritation during the night - not enough to itch or sting, but enough I woke up with lots of goop which is abnormal for me.