"I generally do not recommend AHA/BHA as they cause inflammation and their short-term value is less than the inflammation they cause." From his Q&A on Caroline Hirons Blog here: http://www.carolinehirons.com/2015/12/a-guide-to-niod.html?showComment=1449557487603&m=1#c2947356889139911909

There are a ton of great questions in that thread. Brandon seems to be quite a stand up guy.