Collagen is a protein that acts like a building block for our skin, bones, muscles, and connective tissues. It provides structure and strength, helping to keep our skin firm and elastic. As we age, our bodies produce less collagen, which can lead to wrinkles and sagging skin. There are several types of collagen, with Type I being the most abundant in our bodies. Many people take collagen supplements to support skin health and joint function. Foods rich in vitamin C, like oranges and strawberries, can also help boost collagen production naturally.