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Skin Barrier Lipid Layer (N/A)
- Target
- N/A
- Molecular classification
- Lipid Mixture, Extracellular Matrix Component
01
Overview
The skin barrier lipid layer is a complex mixture of lipids, primarily ceramides, free fatty acids, and cholesterol, arranged in a lamellar structure within the stratum corneum. This layer is crucial for maintaining skin hydration, preventing the entry of irritants and pathogens, and overall skin health. Its dysfunction is implicated in various dermatological conditions.
- Other names
- Stratum Corneum Lipid LayerEpidermal Lipid BarrierSkin BarrierLipid Matrix
02
Mechanism of action
Occlusion; forms a hydrophobic barrier to reduce TEWL and protect against external insults.
03
Biological functions
Water RetentionBarrier FunctionProtection against external irritantsPrevention of transepidermal water loss (TEWL)Structural Integrity of Stratum Corneum
04
Disease associations
Atopic DermatitisEczemaDry SkinAllergic ReactionsInflammation
05
Safety considerations
Potential for allergic reactions to topical agentsOcclusion can sometimes exacerbate certain skin conditionsQuality and purity of topical ingredientsIncorrect ratio of lipids can worsen barrier function
06
Interacting drugs
Petrolatum
7 more in the full profile.
07
Biomarkers
Transepidermal Water Loss (TEWL)Ceramide LevelsFatty Acid LevelsCholesterol LevelsFilaggrin expression
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