IGK's First Class Charcoal Detox Dry Shampoo. I tried out one bottle and now I have these on deck. Even during my last trip home to Hawaii, I made sure my dad went to Sephora to pick one up prior to my arrival because the humidity in Hawaii + the oils in my hair don't make for a friendly combo. It smells so good and it really does the trick, even on day seven hair! If you're in the market for a new dry shampoo, I recommend giving this guy a shot.