Metro Wipes Natural (alcohol and Paraben free) Unscented are Paraben and Alcohol Free. Such detoxifying and natural ingredients are safe for your pets to use wherever you see fit, whether its their tushie, paws, ears and nose, or even on yourself. Keeping with Metro Paws quality Metro Wipes are thicker, larger and softer, than any other wipes on the market! One last reason to love our Metro Wipes? We dont test on animals.