Beauties of Ancient Egypt
We know now that milk contains Lactic Acid. In the 1990s, lactic acid was added to the esthetician’s toolbox. Estheticians realized its molecules, larger than those of glycolic acid, garnered the same results but with more control and fewer reactions. Salycylic acid, a beta hydroxy acid, also came into the professional mix as an exfoliant that works well to treat acne. At last, estheticians had many choices in exfoliation products.
Since 2006, cosmetic chemists have been developing so-called designer peels, which are professional products using these chemicals in new combinations and at lower percentages, often incorporating other ingredients. The effect is to reduce stinging and downtime. Treatments are more gentle now because continual irritation is suspected to advance aging.