Customer Reviews

This is the best black ink I've ever used. Beats Mont Blanc, Noodler's, Parker, Lamy.
Extremely black. Smooth. Doesn't bleed. Doesn't clog. Works well with all papers and pens I've tried.
This ink makes me curious about the science of how ink is designed. Whatever they did, they designed one great ink.

An outstanding ink. Works perfectly in all of my pens, from a broad-nibbed Montblanc Diplomat to an extra-fine-nibbed Pilot. Dries quickly, and is permanent and truly water-resistant on good paper. Not quite as intense a black as Herbin's Perle, or Aurora; but is deep enough, in a midnight charcoal sort of way. This ink is far more refined and less prone to smearing than Noodler's so-called "bulletproof" black, which looks harsh and vulgar by comparison. The only thing wrong with Sailor Nano Ultra Black is that it is so bloody expensive. Still, that won't prevent me from buying it again, as it is by far the best permanent black ink I have ever used.

Ordered the ink despite it being a little more expensive than the other inks. Filled a fine nib Sailor candy fountain pen with it, and the ink has a nice expressive quality to the fine lines. It may not be as dark as Noodler's, but more water resistant for watercolor washes. Overall I would reccomend the ink.

bought this as a random purchase, not disappointing at all! goes on smooth with my sailor Regulus fine nib. drys fast, decently waterproof, and really black! works very well on college lined school paper, no bleeding and does not show thru the page. filling system is really cool, bottle is pleasing to look at. I have been using it for about a month now and have not had any issues with cloging or nib creep.

This is my absolute FAVORITE ink for all my daily use fountain pens. Always goes on beautifully and wet even with a fine nib, dries quickly.

The ink is good, but I think I like Noodler's Bulletproof black better if you like a darker black. The sailor nano black is more like a dark dark charcoal instead of a deep rich high contrast black like Noodler's. I usually write with a headlamp on, and I can tell subtle differences due to my headlamp. If you don't have a headlamp on, you probably wouldn't be able to tell the difference. I would give the bottle design 5 stars, and the ink 4 stars. The bottle design is great because it has a mini reservoir inside the bottle just slightly deeper than the nib and feed making it easy to still draw ink into your pen even when the ink level is lower than your nib depth. With the cap on, you turn the bottle upside down, then flip it over. The mini reservoir captures ink and allows a consistent depth. Without the mini res, you would need a syringe or something to get the ink into your pen. I'm new to the fountain pen world. I had the Noodler's Bulletproof black first. I bought this Sailor Ink because of the great reviews and the price is almost 3x times Noodler's. So, I bought it out of curiosity to see if it really lives up to the hype. Great reviews and excellent packaging. Plus I had not used anything but Noodler's brand. Doing a side by side camparison, the Noodler's is definitely 'blacker' than the sailor. I am sold on the Noodler's bulletproof and waterproof inks. Beyond a color test, I did not do any other comparisons. If you have the money and you like to play around with different inks then buy it, otherwise, if your money is tight, go with Noodler's BB.

This exact ink is available for less at two other reputable online retailers. Do your research. I tried to get a price match from here, and they refused.

The ink itself is fantastic... smooth and solid. Don't second guess the ink, just the retailer.

This is terrific ink. It flows really well even in VF nibbed pens. It's not a very dark blue-black, but the consistency of flow and the way it seems to lubricate even scratchy nibs more than makes up for the lightness of color.

This is a lovely ink colour well worth the, more or less, premium price. The bottle has a great design, it holds a good amount of ink, and it utilizes the "ink reservoir" type system that Pilot uses, to get the full value out of the bottle. The ink itself is a very nice colour, not your typical red or crimson at all. It really does look like the juice of the pomegranate fruit it is named for, and when used in a wet writer or flexible pen, it carries a golden sheen in areas where the ink pools. A very unique ink!

Jet Pens - First off, thanks for carrying this ink! But I would've loved to have bought the new Jentle Apricot and Epinard colours as well, so please do pick them up in the near future!

Very nice dark ink, smooth as silk. Now I am wondering the even more expansive ink from sailor.

The shading on this is absolutel amazing! Beautiful ink.

This is my new signature ink. And I mean for all my writing, not just signing checks!

Sailor Jentle Blue-Black is a conservative, serious, masculine color, without being pretentious. I love how quickly it dries (rivals Noodler's Bernanke Black). Provides very nice shading and variation while remaining controlled and precise. What I like best is that it took care of the little bit of "skipping" I had on my Lamy 2000 (medium). Writes like a champ now. This is the only ink I will be buy/use for a while. Its the most true "blue-black" I've seen. It's not blue, not navy. It's really blue BLACK. A great alternative to washed out blacks or harsh "printer tone" true blacks.

Pick up a bottle, you'll love this ink. And the filling cone inside the inkwell-like bottle is genius. Thanks Jet Pens.. I'll be stocking up on this stuff!

The shading in this ink is apparent even with the finest point. I have my Sailor Reglus Industrial Revolution fountain pen with a fine point currently filled up with this ink. The ink gives lovely shading with this pen. I am sure if you are of a broader point persuasion the color would look even better. I highly recommend this ink brand and particularly this color. It is my favorite Sailor Jentle color, even over the Epinard.

A blue black that leans toward black. It has the character of dark denim to my eye. It has great legibility and serves as my alternative to black ink, which I don't care for.

A great ink overall, but shows some hesitancy in dry writers.

I love the color of this ink. It also flows nicely and is great to write with; it's the perfect shade of green

Sky High is quite possibly my favorite blue ink of all time (and I've tried many!). It's a medium, true blue, no purple or green leanings at all. Really rich, it's got depth yet vibrancy at the same time. Life's too short to use a boring shade of blue!

This is my second favorite Sailor color of ink. The Grenade has to be my favorite. It reminds me of garnets. I ordered the Sailor Epinard because I read that it was similar in color to the discontinued Mont Blanc British Racing Green ink color. I was not disappointed. I highly recommend this ink but, second to the Grenade.

Bought another bottle. It's that good and smooth.

the paper is either top notch or else if you drag for but a second you will get plenty of feathering/bleedthrough


heck even on my nice Japanese notebook ( if you want to call it that ) got speckles of bleed-through when using this with a flex pen, you can see my hesitation very clearly XD

the paper again on that note needs to be WHITE WHTIE, in order to express the green

otherwise it will always appear black until you take a high powered light up to it =p