During my quest for the perfect jet black, micron-sharp liquid eyeliner, I was introduced to KOSE Fasio Film Liquid Eyeliner. I don’t know why it’s called “film” but guess that the liquid liner becomes almost like a plasticized ink line on your lid and only comes off with strong waterproof makeup remover and vigorous scrubbing.
The line is very sharp but I have to still do 2-3 runs to get the jet black color because the tip is so thin. The smaller the tip, the harder it is to get a vivid super black line on your eyelid. I think it’s because it’s hard for the ink to fully flow to such a small tip. See below.
Pros: very waterproof and strong staying power. Smudge proof and stays on after a 16 hour work/gym day.
Cons: almost impossible to find in the US. I think you can get it on eBay for $15 from a couple of sellers.