I iniatially had a reaction to the product as my skin is very sensitive, but I waited a few days and tried again with the sandwhiching method, and building up extremely slowly. It didn't take long before it had cleared up some stubborn perioral dermatitis that nothing else had worked for, and redness has decreased along with improving my overall skin tone. Three months in and I still haven't been able to increase it to morning and night use, so I'm sticking with nightly only until my skin is ready and I'm hoping (and assuming) I'll keep seeing improvements. Very grateful that something is finally working to decrease the sensitivity of my skin!