Human collagen type III is another important protein found in the extracellular matrix of various tissues in the human body. Like collagen type I, it is a fibrous, structural protein that contributes to the strength and integrity of tissues. However, collagen type III has distinct properties and is often found in tissues where elasticity and flexibility are crucial. Collagen type III is present in the deeper layers of the skin, where it provides support and flexibility. It is often found in association with collagen type I to ensure the skin's structural integrity.