I have heard collagen injections can treat wrinkles, but the results do not last. What are they, and are they any good?
Collagen is the most common protein in the skin and gives it its firmness. Collagen can be injected into the skin, where it can “plump up” and soften wrinkles or deep facial folds; alternatively, it can be used for enhancing the appearance of the lips. Standard collagen injections use collagen purified from the skin of cows. Since there are subtle differences between human and cow collagen, cow collagen is progressively broken down by the body after it is injected into the skin. The effects of cow collagen vary, but results typically last 2- 6 months. Several newer materials are now available, and consist of human collagen. Long-term studies are now being conducted by Anthony P. Sclafani, MD, FACS in the Division of Facial Plastic & Reconstructive Surgery; since human collagen should not be recognizedby the body as foreign material, results may be more long- lasting.
