Dating back to a small boutique in Paris in 1700, Herbin Fountain Pen Ink is one of the best in the world, both in smoothness of writing and breadth and brilliance of colour palette. Formulated in homage to the exotic South American country, Cacao de Bresil is a very dark brown-grey, aptly named for the cacao bean. It is a rich colour, great for professional use. All Herbin inks are pH neutral and non-toxic. They are water-based and therefore will run if wetted. The inks are light fast and only natural dyes are used. We recommend high quality paper with Herbin Ink.