Instruct: Classify Amazon reviews into positive or negative sentiment
Query: IT REALLY WORKS!

I used Retin-A for two days. On day 3 I woke up with sandpaper for skin. It was awful. I had skin flaking off in my hands, big red patches...I looked like a snake when it sheds its skin. I belonged in a circus. I went to the pharmacy counter in tears and asked for help. After the shock of my red splotchy, dry flaky skin wore off, the Pharmacist suggested Complex 15. I had never heard of it. But I was desperate. I opened the tube as soon I got in my car and applied it. By the time I got home (5 minutes drive) my skin was noticeably better. I couldn't believe it.This stuff is amazing. I'm well on my way for my face to have smooth skin again. It's inexpensive compared to the fancier brands and WORKS!