As we age, our body's ability to naturally produce collagen slows down which causes skin to sag and wrinkles to form. Jamieson Collagen Anti-Wrinkle is clinically proven to reduce wrinkles and fine lines in 28 days! Collagen is provided to both layers of the skin (epidermis and dermis) to help replace lost structural collagen and achieve firmer, more youthful-looking skin.