Category
Foundations
56 entries
- Skin Layersthe distinct horizontal strata that make up the skin, each with specialized cells and functions that together maintain protection, hydration, and structure. The three...
- The Stratum Corneumthe outermost sublayer of the epidermis, made of flattened, dead keratinocytes embedded in a lipid matrix that together form the skin's main barrier. It...
- The Hypodermis (Subcutaneous Layer)the deepest layer of the skin, located beneath the dermis and composed mainly of fat and connective tissue. It cushions underlying muscles and bones,...
- The Dermisthe thick middle layer of skin beneath the epidermis, providing structural strength, elasticity, and nourishment. It is rich in collagen and elastin fibers produced...
- The Epidermisthe outermost layer of the skin, forming the visible surface and the body's first line of defense against water loss, microbes, and environmental stress....
- Skin Anatomythe structural organization of the skin, the body's largest organ, into distinct layers and cell types that work together to protect against the environment,...
- The Skin Barrier Explainedthe skin's outermost defensive layer — the stratum corneum — made of flattened skin cells (corneocytes) held together by a mortar of lipids: ceramides,...
- How Skin Worksthe body's largest organ and its first line of defence. It is built from three layers — the epidermis (the outer barrier), the dermis...

