Scars are formed when an inflammation, such as acne, causes damage to the dermis. They are a normal part of the skin’s natural healing process. However, many people find them cosmetically bothersome.

Some acne scars eventually fade away on their own. But somehow, no matter what you do, there are these persistent acne scars that won’t go away.

Read more at Reasons Your Acne Scar Won't Go Away and What to Do About It