According to the 2017 FDA Food Code, the greatest concentration of microbes exists around and under the fingernails of the hands.  Fingernail brushes are an effective tool in decontaminating this area of the hand.  The durable brush removes dirt and bacteria trapped beneath fingernails and cuticles. The soft outer bristles efficiently cleans tops and bottoms of fingers while the stiff inner channel removes contaminants from cuticles and under fingernails.