Filler works well for acne scarring, but the injector and the filler matter. If your injector isn't skilled in injecting for scarring, you risk bad results as this is much different than filler for volumizing. Most often I use Restylane, Juvederm Ultra Plus, or sometimes Radiesse. "This answer has been solicited without seeing this patient and cannot be held as true medical advice, but only opinion. Seek in-person treatment with a trained medical professional for appropriate care."