I had to review this myself because its SO AMAZING!!! I left the peel on for 30 minutes at least, and I actually lightly scrubbed my face with a rag before applying, so thus it REALLY reacted! So maybe don't do that LOL! ;)
It did not burn, but got slightly warm, nothing I could not handle, but I am slightly sensitive too. I rinsed with cool water and applied our Facial Rescue serum, then the Mango Cream before bed. Product did indeed tighten and resurface my skin. See photo for redness.