My favorite facial guy(who I can sadly no longer afford)recommended this to me about 7yrs ago after a facial one day for the acne I couldn't help but pick at. My scarring is not severe but I have very light skin & I swear thinking about picking my face used to cause a scar. I use this product once in the morning, before any other topicals & allow it to dry which takes a minute or so, then proceed with putting on the rest of my face. I still use this product 2-3 times a week because I stopped using it a couple years ago and while the old scars did not return I began to notice uneven pigmentation on my nose & cheeks which were minimized once I began using it again a couple times a week. Long story short it's perfect for acne scarring and as I'm finding out now great for the uneven pigment that comes as a result of aging & sun exposure.