Although too brittle to be used by itself, carnauba wax is often combined with other waxes (principally beeswax) to treat and waterproof many leather products where it provides a high-gloss finish and increases leather's hardness and durability. It is also used in the pharmaceutical industry as a tablet-coating agent.
Carnauba, also called Brazil wax and palm wax, is a wax of the leaves of the palm Copernicia prunifera, a plant native to and grown only in the northeastern Brazilian states of Piauí, Ceará, Maranhão, Bahia, and Rio Grande do Norte.
It is used as a coating agent for candies and other sweets. Being a natural and plant-based substance, it can be safely used in food products.
It is used as a vegetarian substitute in place of gelatin, as it is a vegetable wax. This also proves beneficial to those who do not prefer animal-derived products.
It is used as a polishing agent to deliver a glossy finish in polishes and waxes for cars, shoes, instruments, etc. A combination of carnauba wax, beeswax, and turpentine can be used in floor and furniture polishes.