Your skin is slightly acidic (pH ~4.5 to 5.5). Most modern cosmetology focuses on preserving this "acid mantle." When you strip it with high-pH soaps, you cause transepidermal water loss (TEWL). Advanced cosmetology uses ingredients like ceramides, cholesterol, and fatty acids to mimic the skin's natural lipid bilayer.
In the 21st century, cosmetology has evolved from a trade focused on aesthetics into a rigorous scientific discipline. It sits at the intersection of chemistry, biology, and physics. Whether you are a professional esthetician, a product formulator, or simply a skincare enthusiast, understanding the "why" behind the "wow" changes everything. cosmetologia
Disclaimer: This post is for informational purposes only and does not constitute medical advice. Always consult a dermatologist for skin conditions. Your skin is slightly acidic (pH ~4