What Is A BBB? BBB refers to Boar Bristle Brushes. These are brushes that are made from boar bristles. They are thought to be beneficial for hair as their natural fiber coats each hair strand with a small amount of sebum making hair shiny and lustrous. POSTS RELATED TO THIS TERM How To Use A Boar Bristle Brush Without Breakage How To Make Your Heat Styling Routine Less Damaging How To Get Your Natural Hair Bun Laid TweetPinShare0 Shares Home » Glossary » B » What Is A BBB?