A good quality Vitamin E oil and 10 minutes in the sun after application can fade red marks/scars/wounds but that all depends on how well your skin handles E. Some people love it and use it as a moisturizer and some have reactions. It doesn't take much. Just a little dab would work for all, and pairing with with natural vitamin D from the sun is what works wonders. It's recommended to heal scars after surgery so I do not see why it wouldn't help with an acne marks.

Diluted Apple Cider Vinegar used as a toner really helps heal. Just a drop or two of Organic ACV on a cotton ball with a splash of distilled water, press and hold. Nothing is a miracle worker, but both help.
When I hear terms like "hipster" I think, who told cliques they could leave high school??