The acne scar is a condition involving the full thickness of the skin – epidermis, and dermis. The acne develops as a blackhead or blockage of the oil gland duct. The secretions of the gland back up in the duct. This forms a medium for irritation and the bacterial overgrowth which triggers inflammation. The inflammatory cells destroy the gland and the supporting structures which are the collagen, and hyaluronic acid in the dermis, leading to depressed scars. The treatment for the scars, therefore, have to target the dermis, as the primary pathology lies there. If the patient is prone to the formation of pigmentation, then the epidermis starts to look red or dark. If the patient is prone to the formation of keloids or elevated scars, the acne scars result in elevated scars.