A word of warning, this peel is very strong. Even if you are used to regular acid use, I would advise that you think twice before trying this peel. I am no newbie when it comes to acids, as I have used multiple MUAC peels (lactic acid 40% and 60%, glycolic acid 30%, and the mandelic/salicylic peel), and I use a serum with a high concentration of glycolic acid almost nightly. That being said, I have experienced some serious discomfort while using the peel. It wasn't enough to burn or damage my skin, but it made the peeling process rather unpleasant.
Some background on my skin. Last summer I had a pretty serious breakout on the lower half of my cheeks and parts of my jawline. As a result, I have two rather large areas with some red hyper-pigmentation and about 5 textured acne scars (mostly icepick and one rolling). I wanted to fade these scars as fast as possible, so I decided to try the fade peel. I figured that since I had success with lactic and glycolic acid, both of which are in the peel along with kojic and malic acids, I would also see similar results with this product. This was a correct assumption, and I am very happy with the results I'm seeing.
I have used the peel 4 times now, and my hyper-pigmentation has significantly faded, and my scars are looking shallower and less noticeable. I suspect that they will be almost entirely gone with a few more treatments. I'm also seeing a smoother, brighter complexion overall.
Some other things to consider. I only use this as a spot treatment on the areas I need it most, and I take extra care to keep it away from the more sensitive areas on my face, which for me is the sides of my nose and my upper cheeks. I'm also very careful to leave it on for no more than 5 minutes. The MUAC website also recommends that you start with the fade serum before trying the fade peel, to get your skin acclimated to formulation. If you are concerned about adverse reactions, I highly suggest you take this extra step.
Overall, I am very pleased with this peel, and I would recommend it to those looking to fade acne scars and other unwanted pigmentation.