I got rid of my acne scar pits using topical products - Silkia camelia oil and Epidermx microderrabrasion. I used to have 5 pretty deep pits on my forehead (about 2mm) and they have pretty much filled in completely. It took time to get results. I didn't really see any difference until around 6 months and then in about a year, I started to see that the scars looked much better. Another couple of months the scars became almost unnoticable. Now a couple of years later, when I look at my forehead I can't believe I had deep pits there before.
I also had 3 pits above my lip line. They are not as much filled in as those in the forehead but still look much much better. I only need a little concealer.
I really believe if you have the patience and are willing to give time for these products to work, they will help. A lot of my frienRAB tried laser, Fraxel, TCA peels and other expensive procedures and they all got less than half of my results. I told them to try these products and they worked very well for them also.