I have a hard time finding a eye liner that can stay the entire day.

Not only do I have an "inner fold" but my eyes water a lot due to the sensitivity.

not even Bobbi Brown Lancome UD Makeup forever Dioretc withstands the friction and wateriness my eyes creates.

I was a bit skeptical of this when I started hearing and reading about it so often in Korean blogs and forums I thought it was some kind of advertisement like Banila.co (their eyeliners are very chalky and terrible by the way)

but this is honestly the best pencil liner I've ever purchased for $6ish which is only fraction of the high end pencil liners sold at Sephora and Nordstrom.

I use a blotting sheet of paper to remove excess oil and use a Toofaced shadow insurance primer. (yes even then a lot of eyeliners still smudge) and this truly wears for 6~8 hours even if I were to cry or be sweating in heat of the summer.

I had no problem with this causing any irritation to my eyes.