What component contributes to the pliability of the skin?

The component that significantly contributes to the pliability of the skin is elastin. This protein is crucial in providing elasticity and flexibility, allowing the skin to stretch and return to its original shape without damage. As we age, the production of elastin decreases, which can lead to the skin becoming less pliable and more prone to sagging.

Collagen, while essential for the structural integrity and strength of the skin, does not directly influence its pliability. Instead, it provides support and firmness. Keratin, on the other hand, is a protein that forms the protective outer layer of skin and hair but does not contribute to the skin's elasticity or pliability. Hyaluronic acid plays a vital role in skin hydration and can help maintain skin volume, but its primary function is not related to elasticity.