Lipidbarriär

Lipidbarriär refers to the outermost layer of the skin, the stratum corneum, and its critical role in preventing water loss and protecting against external irritants. This barrier is primarily composed of lipids, including ceramides, cholesterol, and fatty acids, arranged in a lamellar structure. This structure creates a dense, hydrophobic matrix that is essential for maintaining skin hydration and integrity. The proper functioning of the lipid barrier is crucial for healthy skin and plays a significant role in preventing conditions like eczema and psoriasis. Disruptions to the lipid barrier can lead to increased transepidermal water loss (TEWL), making the skin dry, sensitive, and more susceptible to environmental damage and microbial invasion. Factors such as aging, harsh skincare products, and environmental stressors can impair the lipid barrier. Maintaining a healthy lipid barrier often involves using emollients and moisturizers that contain lipid components to supplement and support the skin's natural defenses. Research into the lipid barrier continues to explore ways to enhance its function and treat associated skin disorders.