On the other hand, when there's too much collagen, it results in raised scars." Acne scars fall under two broad categories: depressed scars and raised scars. Depressed acne scars: Also known as ...

Acne is a very common skin problem, one that affects 50 million people, including teens and adults, in the United States annually, according to the American Academy of Dermatology (AAD).

Whether it’s caused by acne, surgery or another wound-inducing ... Keep in mind that over-the-counter treatments won’t do much to flatten raised scars, and most scars are best treated with ...