Burns like a mother, but works like a CHARM! Would have given it 5 stars if it didn't burn so badly!!
Edit on 3/19/16: This does not burn my skin AT ALL anymore. When I first started using this I did not wait the full month, like Dan recommends. I now have been using the regimen for 4 months and I use the AHA moisturizer every other night and it doesn't burn at all. Just a very mild tingle. Still highly recommend this!! The longer I use it the better my skin looks :)