Lavanila The Healthy Underarm Detox Mask Brush-On Mask 1.5oz / 43g A first-to-market solution for your underarm concerns. Environmental factors and sweat-stopping formulas can leave buildup and often worrisome residue in the underarm that leads to lumps, bumps, irritation, concern, and a long transition to natural deodorant. This all-natural mask�powered by active charcoal, malic acid, and silica�works like a magnet to help absorb and draw out buildup and impurities to detoxify, beautify, and transition the underarm.