Last month I have been adding fiber powder (Benefiber) to my drinks twice a day...
I wasnt sure if there was much benefit from it, but i ran out last week and have since had a major breakout.
I noticed my digestion started working so much better than before (never bloated or gassy, and poo was totally regular) This is a big deal for me as I have a very sensitive digestive system (lactose intolerance being the big factor).
My skin seemed very calm over the last month, so I have ordered a few more months worth and will post my thoughts about its effectivness on skin. I'll be taking probiotics also.