I buy directly from MBadescu site. I can vouch for many things for this product (I'm paranoid they'll stop making this cleanser!). At the time of my posting, 2/2018, the cost is $16.00/6 fl. oz. I will continue to buy this product over and over but as with all of Badescu products, a little goes a long way. That's the first good thing. Very cost effective. I purchase it every 2 years. I have very sensitive skin. I have my entire life. I can use the glycolic cleanser every few days with only the best of clean glowing skin as a result, without any hint of irritation. I try and do a mask with it every Sunday. I put it on to my dry face, rub and rub until a white foam appears and then leave it on for about 3-5 mins. It totally gets rid of the flakiness I acquire through the week. I have noticed after turning 55, my skin decided to start getting drier and drier. No matter what I did to try and keep this from happening. I could rub my facial skin lightly with my finger, on the side of my cheek and get all kinds of skin to flake off despite the use of my Clarisonic and skinceutical facial products. Nothing seemed to prevent this from happening until I started using this glycolic cleanser. Thank goodness as it was creeping me out more and more each time I did it. Perhaps I'm the only female on earth who insists on looking at my skin with a 20x magnifying mirror but I was finding all sorts of things (dry skin flakes - a LOT of them, deeper wrinkles, appearance of bumps with white which weren't white or black heads. They were just these pinpoint areas of white, that I could see with the magnifying mirror.) My husband said he couldn't see what I was talking about but what does he know. He wasn't using a magnifying glass to look at my skin! Anyway, since using the glycolic acid cleansing foaming cleanser, my face no longer has these areas. I love this cleanser. I'm glad I found something so inexpensive to address the issues I've been feeling and seeing. I use different moisturizers based on the dryness of where I live. I also do moisturizing masks during the summer months here in AZ. Heck, even a few times during the winter months because the house heater can zap the moisture from the air in the house.
All I can say is this is a very good product. BTW, I never had acne therefore have no scarring so I can not vouch for what it is able to do for acne prone skin. I can vouch for what it can do for a gal who gets younger everyday and wants to continue looking that way!