BIRCHWOOD A.E.R. WITCH HAZEL PADS & TOWELETTES AER pre-moistened pads and towelettes are saturated with both 50% Witch Hazel, an astringent, that helps to shrink swollen or inflamed tissues and relieve irritation, along with 12.5% glycerin providing a cool, soothing compress to relieve hemorrhoidal and rectal discomfort.