What Is Collagen?

Collagen is the most abundant protein in the human body, serving as a crucial building block for our connective tissues. It helps support joint health and gives skin its firmness, smoothness, and elasticity. Collagen also plays an essential role in maintaining healthy hair, nails, bones, and the intestinal lining.

Although it’s not classified as a complete protein—since it lacks all nine essential amino acids—collagen is uniquely rich in glycine and proline, two amino acids that the body naturally produces and relies on to build this structural protein.

Why Collagen Matters as We Age

Starting in our late 20s to early 30s, the body’s natural collagen production begins to decline. This reduction is one of the primary contributors to visible signs of aging, such as the loss of skin plumpness, fine lines, and wrinkles.

What Affects Collagen Levels?

While aging is a natural cause of collagen decline, several lifestyle factors can accelerate the process. Excessive sun exposure, alcohol consumption, and diets high in refined sugars can all damage collagen fibers and reduce the body’s ability to produce new collagen, hastening the signs of aging.