HairCubed® Fiber Black, Color 1, 2 WaterProof New generation of microfiber technology to triple your hair supply by 3. It is the only product on the market that thickens your actual hair rather than just covering up your scalp, which causes more hair loss. The more you brush HairCubed, The thicker your natural hair becomes, Covering up thinning, fine or balding areas as well as cowlick.