CLAIM One pump and a volumizing foam oozes through the built-in-bristles on top, which distribute mousse right where you want it. EXPERT OPINION "I's a fan!" says L.A. hairstylist Andy Lecompte. "The clever applicator allows you to concentrate more at the roots for extra lift." OUR VERDICT The mousse bulked up fine strands, but the brush got a limper reaction. It got tangled in wet, uncombed locks and "took forever to comb through my thick hair," said one tester.