Skin Barrier-Friendly Preservatives and Multifunctionals
Key takeaways Most skin-barrier content starts and ends with lipids — ceramides, cholesterol, fatty acids, the brick-and-mortar story. The preservation system is rarely invited into that conversation. Yet preservatives and multifunctionals are present in almost every water-containing formula, they sit on the skin for the life of the product, and they interact directly with the […]