on saleRohrer & Klingner Helianthus - 50ml Bottled Ink

Product Code RK40210050

In Stock

out of stock

on saleRohrer & Klingner Helianthus - 50ml Bottled Ink

Product Code RK40210050

In Stock

out of stock

50ml Bottle

50ml glass bottle of Rohrer & Klingner Helianthus (Sunflower Yellow) fountain pen ink.

Rohrer & Klingner
Bottled Ink
Bottle Material
Bottle Opening Diameter
21.6mm (0.85in)
Fast Drying

Whether or not the ink contains glittery particles.

Freeze Resistant

Whether or not an ink is specially formulated to better withstand freezing temperatures.

Iron Gall

Ink made from iron salts and tannic acids. Though quite permanent and waterproof, these inks are typically known for causing chemical corrosion to metal pen parts (especially the nib) and should be used sparingly or with less-valuable pens.


Whether or not an ink is specially formulated to increase flow in your pen.


Whether or not the ink contains finely-ground solid particles in liquid suspension.

Water Resistant

Whether or not the ink, once dried on the paper, will resist being washed away with water.


Customer Reviews

Based on 10 reviews
Roger R.
One of my favorite inks.

I LOVE THIS INK. It is so bright and happy looking. I smile every time I write with it. One of the things I love about this ink is that it looks different with each pen. In one of my Medium Fine steel nib Sailor pens, it looks light and Yellowish. Very summery. In an anonymous "no name" pen with a Medium nib it looks quite orange and heavier with a decidedly autumnal feel. This has become one of my regular go to's. I almost always have a pen loaded up with this ink on hand. Because it is just FUN!

Micah R.
Simply magnificent!

I love this ink, and I definitely see why they made it the best yellow ink in their recent video about best inks in every color.Extremely legible and flows very nicely, not too wet, not too dry. I used a medium nib and experienced basically no sheen, so it's a very consistent color. It can smear a little if your hands are slightly damp, but will still be quite legible.

David B.
Bring sunshine to your writing!

Helianthus (Sunflower) is a beautiful bright yellow, just like the petals of a Sunflower. I was seeking a yellow ink that would not disappear on paper which is ivory/cream/light yellow. And this ink stands out very nicely. Not to be confused with a blatantly bright neon yellow of highlighters. Inked up an Aurora Ipsilon with Helianthus and tested this ink on four papers; Moleskine, Peter Pauper Press, Rhodia, and Tomoe River. Look'n good on all four!!!

Holy sunflowers Batman!

I have another one of these inks, and I'll say right off that they're amazing. Truly, this ink is bottled sunflower petals. If you're looking for something kind of antique, this ain't it. I think I was hoping for a kind of dark school bus, but as advertised, Helianthus. I would say that you would get the best result with this with a juicy medium nib pen, a flex pen or something of the like. I'm using a Fine TWSBI Go and I'm finding it hard to make this an everyday ink for myself because it is so bright and light. That this ink is beautiful, there is no doubt. Special occasions, yeah. Note taking? Maybe not.

Great ink,

I got acquainted with this ink from a sample. I really liked how it goes with pale and bright colors. It flows well. I'm embarrassed to say how long it was in the pen without clogging the nib feed. The cost is very reasonable. I highly recommend this ink.

FAQs about Bottled Ink

Which pens can accept this ink? 8EDA1617-F73A-4DAF-8245-6D2BF4ABEB7B

Any of these fountain pens will work with bottled ink. Typically, as long as the pen can be filled with a converter, has a built-in filling mechanism like a piston, or can be eyedropper-filled, it can accept bottled ink.

What is shading, sheening, or shimmering ink? 8EDA1617-F73A-4DAF-8245-6D2BF4ABEB7B

Shading - A common (and often desired) result of a fountain pen ink pooling in certain parts of a letter when writing, so that the color and saturation of the ink appears different within a single letter or word. This characteristic cannot be achieved with ballpoint or rollerball pens and is a very appealing aspect of fountain pen use for those particularly drawn to all the pretty ink colors.

Sheen - Characteristic of a fountain pen ink where when ink pools another color can be seen on top of the ink, especially when looked at in different light angles using certain paper types. There is no way to guarantee an ink will sheen, but using a larger nib on a pen will help obtain sheening results in your writing.

Shimmering - Fountain pen ink that has small particles of glitter mixed in.

Is shimmering ink safe to use in fountain pens? 8EDA1617-F73A-4DAF-8245-6D2BF4ABEB7B

Yes! Shimmering ink is a great way to add some flare to your writing. We have found that a larger nib will showcase more shimmering particles while writing, but you can use any nib size and shimmering ink. All the ink we sell is safe for use in fountain pens.

You can learn more in our blog: How to Write with Shimmering Ink.

My ink smells funny, is it safe to use? 8EDA1617-F73A-4DAF-8245-6D2BF4ABEB7B

Generally yes! Ink does not smell good- it usually has a chemical smell, along with other scents such as sulfur, rubber, chemicals or even paint. However, as long as you’re not seeing anything floating in the ink, it should be safe to use.

It’s cold and my ink froze; is it safe to use? 8EDA1617-F73A-4DAF-8245-6D2BF4ABEB7B

Yes, frozen ink will not hurt your pen (after it’s thawed of course!) The issue with ink freezing is primarily a concern because certain glass bottles could break as the water-based ink expands, and then you’d have a mess!

What is your return policy for bottled ink? 8EDA1617-F73A-4DAF-8245-6D2BF4ABEB7B

We do not accept returns for ink that has been used. Otherwise, we accept returns on unused ink products for up to 30 days from purchase. You can read all our Return Policies here.

To initiate a return, please submit a request at the Return Portal. Our Customer Care team might reach out to you for more information.