Herbin phosphorescente Ink also known as the Lumicescent ink is an invisible Ink. To use with a brush, mainly for drawing. Approach it from a source of light and it will appear in the night.
Herbin's calligraphy and specialty inks include rich metallics, shimmering pearlescents, and inks steeped in history. These inks are not for fountain pens. They are best suited for steel nibs, glass or quill pens, calames and brushes.
