Dr. Mercola Marine CollagenAs you age, the collagen in your skin and connective tissues weakens and loses strength, leading to increased skin creasing and sagging. By age 40, your production is reduced to about half of youthful levels Poor gut health, hormone imbalances, excess carbs and sugar, and other factors may contribute to this loss. Fortunately, supplemental collagen allows you to slow declining collagen levels and even helps you build them back up, providing structure