Fountain Pen Ink - 12 Juniper

What better inspiration than the Juniper plant, with its delicious bounty of deep purple berries.

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The finest British-made fountain pen ink suitable for all pens. For one of our darkest, richest shades of ink, we once more looked to the natural world for inspiration, and what better inspiration than the Juniper plant, with its delicious bounty of deep purple berries.

Transform the way you create with an ink colour that sets you apart!

Most pens offer ink cartridges in a limited selection of colours. I want to change that by bringing you this range of beautifully rich and distinctive inks – with no need to dispose of or replace an empty cartridge.

These wonderfully free-flowing inks come in a number of beautiful and nuanced shades. They truly are a joy to write or create with!

  • Each bottle holds 50ml of ink, enough to keep you going for reams of writing, drawing, or doodling.
  • All of our fountain pen inks are water-based, acid-free, non-toxic and vegan.

Our fountain pen ink is compatible with all Tom’s Studio Pens, including calligraphy (The Flourish, Carrot, and Bloom), fountain (The Studio and Studio Pocket), and fineliner (The Lumos and Lumos Mini).


Fountain pen inks are highly 'layerable', allowing you to build different intensities or colours by applying more or less ink on the paper. Please note that the colour on the label may not perfectly represent the colour achieved when using different pens or techniques.


Because the ink has such a concentrated colour, you can dilute it with a smidge of water (ideally distilled) to create watercolour-like washes and depth of colour.

Shipping costs are calculated at checkout.

For dispatch times, customs details, and more, please visit our Delivery page. If you have any questions, feel free to reach out to us at hello@tomsstudio.co.uk – we’re here to help!

Customer Reviews

Based on 242 reviews
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J
Judi B.
True black

Feels and looks good on paper

M
Matthew K.
Great ink

Comes out exactly the color I thought it would be

A
Andrea

Gorgeous ink color… may be the most beautiful that i’ve seen

H
Hayley R.
Stunning!

I'm a purple pen girl and this ink is truly what dreams are made of!! Gorgeous color and flawless to write with!

R
Rebecca M.
Deep rich black

Lovely depth of colour smooth flow, work beautifully with both my fountain pen and lumos brass.