Tupã Matis demonstrating how to process the green fruit of jenipapo or huito (Genipa americana) from which a black dye is obtained.  The black dye is used in face and body painting.  In addition, the dye is mixed with other pigments (e.g. copal) to create an ink that is used to make permanent tattoos.  Currently, jenipapo is being marketed as "jagua," a temporary black tattoo ink.  The ripe fruit of the jenipapo tree can be used to make a fruit drink that is high in Vitamin C.  In fact in the Amazon, this huito fruit drink  is commonly used to treat children with asthma.