In modern skincare routines, 保濕精華 (moisturizing serum) has become one of the most important products for maintaining healthy, glowing skin. Unlike regular creams, a serum is highly concentrated and designed to deliver deep hydration directly into the skin layers. What is 保濕精華? 保濕精華 refers to a hydrating essence or serum that is formulated to provide intense moisture ... https://www.derm-mart.com.hk/collections/serums