It felt cool and tingly on my skin and I kept it on for 20 minutes give or take. While I wish there was some sort of instruction (how long to keep it on, storage, or disclaimer on how it feels while on your face), especially for people like me who don't actually use any of these products regularly, there was no averse skin reaction by my skin.
My skin feels soft, and some of my older marks did lighten. Too much can be drying based on the ingredients, so do moisturise once toy dry your face. I love that it can be lightly exfoliating as well!