Noodler's Ink - The Heart of Darkness

The Heart of Darkness intensely black ink from Noodler's has been formulated with "bullet-proof" qualities to make it impervious to water, bleach and light. Safe for fountain pens of all types, this ink provides archival quality, is pH neutral and is 100% made in the USA. Includes a free eyedropper fill fountain pen to save money and help the environment. Size: 4.5 oz dropper bottle. (Color samples are approximate. Use this sample as a general reference only.)

Along with this bottled ink we recommend purchasing silicone grease to keep your eyedropper fill fountain pen from leaking.

When should I refill my eyedropper pen?

Other "bullet-proof" Noodler's Ink:
Noodler's Black (001)
Noodler's Black (001) 4.5 oz bottle
Luxury Blue
Lexington Gray
Lexington Gray 4.5 oz bottle
Polar Blue
Polar Blue 4.5 oz bottle
Year of the Golden Pig
Blue Ghost Invisible Ink