Razz-Berry 9
Keep getting killed is the best solution. Make sure your not sleeping in the Fairfax Castle bed. It's known to de-age and de-scar you. Yes I wish I had known it would do that before I had slept in it on my first Hero. Those spooky Red Eyes I got over the course of my adventure along with the Chasm Mask and Helmet looked wonderful.
Update: Sold all my Resurrection Phials and started insulting some Hobbes. It's defiantly working and I'm loving the scars. Only now it appears that even though I continue to get knocked out every once in a while I'm not gaining any new scars.