Autologous fat grafting, also referred to as fat transfer, is a technique utilized in the treatment of acne scars. This procedure involves the extraction of fat from one area of the patient's body through liposuction, which is then injected into the site of the scar. By utilizing the patient's own fat tissues, this method aims to improve the appearance of the scar.

In certain cases, subcision may also be necessary for the treatment of acne scars. Subcision involves the use of a specialized hypodermic needle that is inserted through a puncture in the skin's surface. The sharp edge of the needle is used to break the fibrotic strands that anchor the scar to the underlying tissue. This process, combined with the deposition of new collagen during wound healing, contributes to the overall cosmetic improvement of the scar.