I was interested in using this new “50% Glycolic (AHA-Alpha Hydroxy) Acid Serum for Chemical Peel-Medical Grade” and tested it out for a week. This was my first venture into this chemical peel type world. I love the idea of keeping my skin fresh and as healthy as can be. I did do the test spot as advised and experienced no noticeable issues on the spot. After waiting a few days, I decided to give my full face a wash. I will say my face tingled like crazy, but I feel as if it did its job after washing it off. My skin feels and looks great and I am very happy with the results. The main thing I am a bit unclear on is how frequently I really should be using this. I have a feeling I won’t be doing it more than once or twice a month. I am happy with the product overall and would happily recommend it to anyone. Thanks.