Noodler's Bulletproof Blue Ghost Invisible Fountain Pen Ink

This is the perfect ink for writing those secret love letters...Or you could just use it for fun projects or to add a little extra excitement to your letters. Do people still write letters? They should.The ink glides well, you might want a little UV light to be able to see where you've already written because it really is invisible on paper without it.Top quality ink.Not too long of a wait on the delivery.Would recommend to anyone who needs things to be incognito.

Works very well in my fountain pens. Invisible under normal light and daylight. It shines a slightly bluish white under a UV light.This amount of ink will last a few years at my rate of use.Top class product.

Nice ink that writes very smoothly, glows brightly on watercolor paper when a uv light goes on it and arrived very quickly.

The ink is really good in quantity and quality isn’t half bad! The ink can become noticeable yellow if you apply too many coats and it is only really bright on certain paper qualities but apart from that there isn’t much to complain about especially for the price and the amount you’re given!

Great invisible-ink! There is absolutely no trace of the writing when there is no UV-light present. It cannot be seen when the paper is held up to a light source. Truly invisible.Shows very clearly when you shine a UV-lamp (blacklight) on the ink/paper. Really magical!

I was looking for a way to do invisible writing for something I was creating for my ARC readers. I’d tried lemon juice but it was too runny. This flowed beautifully. I’m super pleased with the results. You’ll need a dedicated pen & nib so that you don’t get any crossover contamination.

I use invisible ink so that I can doodle on my favorite books without damaging the printing or paper and things work out well.

Really good. Worth every penny.

ich empfehle dieses Produkt, der immer schon gerne Geheimnachrichten oder Bilder schreiben/ zeichnen möchte, dazu braucht man noch eine Feder/ Pinsel und eine UV Taschenlampe.Die Flüssigkeit ist Transparent und Gelblich, wenn man es unter UV-Licht hält, leuchtet es Bläulich und sehr intensiv.

With a few negative reviews, I wasn't sure if this would work well, but it works great with the black lights that I have. I loaded it into a pen and it flows smoothly, dries quickly and invisible in normal light, but is bright and legible under the UV/black light.

Al secarse la tinta no se nota nada que hay algo escrito. Resultado muy bueno

E' un inchiostro che crea degli effetti pazzeschi. Il colore che fa sotto la luce sembra magico. Soddisfatto in tutto.

The media could not be loaded. Perfect for hiding dire warnings in your research journal while studying paranormal phenomena!This ink is supposedly bulletproof; I can confirm that it is! It survived being printed over in an inkjet printer. The ink shines through the printer ink (altough it doesn't shine through very dark ink, so keep this in mind). (it also fades a bit after this process and isn't as vibrant as writing on plain paper).Keep in mind that you can't use this ink on any slightly glossy surface, or on coffee-stained paper.It is absolutely invisible to the naked eye. If you really look for it, you can see the words are white and chalky once dried but you have to be searching for it.This ink works well for fountain pens and dip pens. Not as well for paintbrushes, from my personal experience.