I really like Garnier SkinActive Clearly Brighter Overnight Peel. I don't have dark spots, at least none are noticeable yet, but I still noticed a difference in my skin's texture. Overall, my skin of my face does look more smooth and "brighter". I was worried about it not being comfortable on my skin overnight, but it is not sticky once it dries and does not leave a residue on my pillow.
The only downside I have noticed, is that the pores on my forehead have been looking a little clogged since using this. It took several weeks for me to notice - and I'm not sure if this is even the cause. I have still decided to forego applying this to my forehead until I figure out what the cause is.