Glossary
Jagua
A fruit-based dye that stains skin blue-black, a safe dark alternative to black henna.
Jagua is a natural dye made from the juice of the unripe Genipa americana fruit, which stains the skin a deep blue-black and serves as a safer dark alternative to dangerous black henna. The fruit's juice contains genipin, a compound that reacts with proteins in the upper layers of skin to produce a dark stain that develops over one to two days and generally lasts one to two weeks before fading naturally. Native to Central and South America, jagua has long been used for traditional body art by Indigenous communities and has gained wider popularity as a temporary alternative to permanent tattoos. Unlike henna, which produces only reddish-brown tones, jagua yields the dark, near-black look many people want, without the paraphenylenediamine found in unsafe black henna products. Even so, jagua is derived from a fruit in the same family as berries, so people with fruit or berry allergies should patch test before use, as reactions are possible. Applied as a gel and washed off once it sets, jagua colors the skin's surface rather than depositing ink beneath it, making it non-permanent. Its dark, realistic tone makes it a useful way to preview how a darker design might read on the skin.