History for Octopus Fluids Unicorn

Unicorn, an ink from Octopus Fluids, is a bright medium blue, rich and saturated. There is shading visible, with smooth transition. It is called a "sheening ink" and, true to its name, it sheens very strongly, in pink. The ink dries reasonably fast in writing, and reviewers report it doesn't seem to smear. Unicorn is sold in 30 ml glass bottles.