The Origins and Evolution of Acidic Skin Treatments: From Historical Curiosities to Modern Skincare The Origins of My Interest Recently I got into a squabble with the author of a paper published on NIH PubMed. The author quoted the basis of their paper on two dudes that I would have to categorize as snake oil salesmen from the 1890s as a basis for why people need to use acid treatments on their face to balance the skin. Basically, the two dudes were pitching apple cider as a toner for women to use for a more…