What is the role of collagen in the skin?

Collagen plays a crucial role in providing structural support to the skin. It is a type of protein that forms a significant part of the dermal layer, which is the middle layer of the skin. Collagen fibers give the skin its strength, elasticity, and firmness, helping to maintain its overall structure and integrity. As people age, collagen production decreases, leading to signs of aging such as wrinkles and sagging skin. This structural support is vital for the skin's ability to withstand various physical stresses and maintain its shape over time. Other functions mentioned in the options, such as pigmentation, skin healing, and sweat production, are associated with different components of the skin, but the primary and critical role of collagen is indeed to provide that essential structural support.