All Pilot ballpoint pens, all Pentel HyperG gel pens, and several uni-ball pens include indelible ink. Popular expert review website Wirecutter named the uni-ball Jetstream the best non-fountain pen in 2013 due to its smooth writing, indelibility, and ink flow.
Visit the website of the manufacturer or store to verify if a pen employs indelible ink. Once used, indelible ink cannot be erased. To protect the security of written checks and archival records, many individuals choose to use pens with indelible ink. Most indelible inks dry rapidly to prevent smudging and streaks, resulting in a short shelf life if the pen is not retracted or left exposed to the air.
