The primary role of the stratum corneum in skin health is to protect against environmental damage. This outermost layer of the skin acts as a barrier, preventing the entry of pathogens, pollutants, and harmful chemicals while also minimizing water loss from the body. Its composition of dead skin cells and lipids creates a tough, resilient layer that is crucial for maintaining overall skin integrity and function.
In addition to its protective function, the stratum corneum plays a vital role in preventing dehydration, ensuring that the skin maintains its moisture balance. This protective barrier is essential for skin health because it helps to keep the skin hydrated and healthy, which in turn supports its appearance and function.
While temperature regulation and structural support are important aspects of overall skin physiology, they are not primarily attributed to the stratum corneum. Similarly, the absorption of nutrients occurs mainly through other layers of the skin, rather than through the stratum corneum, which is primarily focused on protective functions.