To be perfectly honest with you, when it comes to acne scarring, I never recommend just using one treatment modality as you need a combination to get the best results. So a combination of what you have mentioned in your question and possibly one or two others as well used in the correct combination will give you the best results. Serum wise, I can highly recommend Skin Medica’s Essential serum or Lamelle’s Detmaheal Serum.