Treating an older scan can depend on its type and appearance. For example, treatments to flatten raised scars likely won’t help pitted scars. The most effective treatment can also depend on your skin color. Scars form as part of the natural healing process following an injury. When the dermis (the second layer of skin) is damaged, your body forms collagen fibers to repair the damage, resulting in a scar. The severity of a scar often depends on the severity of the injury or damage. Scars form differently on different parts of the body and based on the age of the injured person. Continue reading to learn about common medical and natural remedies for scar healing and their effectiveness for different types of scars.