Umm from all that I've read, this does not sound like something that would get rid of scars. Collagen cream could possibly help soften some scars but I personally just don't think it will completely diminish scars. Papaya does have good enzymes in It for the skin and is very moisturizing & soothing on the skin, especially cold papaya from fridge applied to face during hot summer day's, but again I highly doubt this will remove scars but I'm sure it will soften your overall complexion.
If you have shallow acne scars try a dermapen or roller at home and use some collagen inducing topicals afterwards like a vitamin c serum. Over time this should help your scars.
Thank you!! I've seen you in the scar forums quite a bit recently, do you think you could tell me some more of what you've found out from your scar treatment research? You can private message me if you want or just answer here. I think I'll be posting some pics to help determine whether or not my scars are considered shallow.