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. A true blue colour, Bleu Azure evokes feelings of a Caribbean holiday. The ink does not run as wet as other Herbin inks, and the colour is quite bright recommended for papers of darker shades. 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.