Category
Glossary
148 entries
- Occlusivean ingredient that forms a protective layer on the skin's surface to slow the evaporation of water. By physically sealing in moisture, occlusives help...
- TEWL (Transepidermal Water Loss)the process by which water evaporates from inside the body outward through the skin and into the environment. A certain baseline amount is normal,...
- What Is a Humectant?an ingredient that attracts and binds water, drawing moisture into the upper layers of skin to keep it hydrated. Common humectants include hyaluronic acid,...
- What Is the Skin Barrier?the skin's protective outer layer (the stratum corneum) that keeps moisture in and irritants, allergens and microbes out. It is often described as a...
