Acerola is a shrub or small tree that is native to Central America, northern South America, Mexico, and the Caribbean. The fruit is similar to a cherry and is a deep red color when ripe. It is a rich source of vitamin C.

Acerola is commonly used by mouth to prevent vitamin C deficiency, and to treat scurvy, a disease caused by vitamin C deficiency. It is also used for the common cold, diarrhea, liver problems, and other conditions. But there is limited scientific research to support these other uses.