Why is hydration important for the skin?

Hydration is crucial for the skin because it helps maintain skin elasticity. Elasticity refers to the skin's ability to stretch and return to its original shape, which is essential for a youthful and healthy appearance. Well-hydrated skin tends to be plump and resilient, reducing the appearance of fine lines and wrinkles.

When skin is adequately hydrated, it supports the functionality of the skin barrier, which protects against environmental stressors and prevents moisture loss. This barrier function is vital for maintaining overall skin health and ensuring that the skin looks firm and smooth.

While aspects like skin temperature, oil production, and shine may play roles in skin appearance or function, they do not directly relate to the fundamental benefits of hydration in preserving skin elasticity and overall health.