h2o wipes are made from 100% natural viscose which consist of wood pulp or bamboo grass. This viscose is smoother than cotton and soft as silk. h2o wipes contain no bleach and no chemicals, they are completely biodegradable. You can throw the used wipe into your compost bin without concern. They do not leave any unsafe chemicals or bi-products in the soil and they decompose within 35 days on average, they do not contain alcohol or any harmful chemicals. They are baby safe so you can use them on your children without any concerns.