[Brajeshwar]

You will like “Carbon Black CHOU Kuro.” It is, I think, currently the father of all Black Inks. If you wish to read up, here is an article I found searching — it compares Chou Kuro’s Platinum against the Carbon Black.

https://www.penchalet.com/blog/platinum-chou-kuro-vs-carbon-...

[quantummagic]

Don't know how much weight to attribute to a sole review, but it was a 1 star:

https://www.amazon.ca/PLATINUM-Ink-Bottle-Carbon-Black/dp/B0...

[Brajeshwar]

Well, 40 other reviews seem to like it more to be giving it 4+ stars. https://www.amazon.com/PLATINUM-Ink-Bottle-Carbon-Black/dp/B...