As we age, collagen production in our skin naturally begins to slow down. Collagen is an essential structural protein in the body that keeps skin plump, supple, and wrinkle-free. When collagen breaks down, wrinkles, fine lines, sagging skin, and dull tones can start to become more visible on the face and neck. Luckily, it’s possible to counteract collagen loss with the right skincare products and ingredients. One of the most effective collagen-boosting ingredients available today is peptide serum.