Vitamasques' biodegradable sheet masks are made of natural plant cellulose, which decomposes over time. Our biodegradable sheet masks can be broken down naturally by biological processes, such as bacteria or fungi, into simpler substances like water, carbon dioxide, and biomass. This breakdown occurs over time, typically without causing harm to the environment. This makes our biodegradable sheet masks environmentally friendly alternatives to non-biodegradable ones.