What is a common effect of over-exfoliation?

Over-exfoliation can lead to irritation and sensitivity because it disrupts the skin's natural barrier. The skin's outer layer, known as the stratum corneum, plays a crucial role in protecting underlying tissues and maintaining hydration. When exfoliation is excessive, it can strip away too many skin cells and lipids, resulting in inflammation, redness, and heightened sensitivity. This can make the skin more vulnerable to environmental aggressors, allergens, and irritants, leading to further complications such as dryness or a compromised barrier function. Understanding this effect emphasizes the importance of balancing exfoliation practices to promote skin health without causing harm.