19170 Firefly Yellow HL

The glow on the page is almost unreal—my notes actually look like they're lit from within, and the 3 oz bottle feels like it'll last me through a whole semester of studying. It dries fast enough that I don't smear my writing when I flip pages, which is a huge win for my messy note-taking habits.

I use this with a glass dip pen to underline textbook passages, and the fluorescent yellow pops on cheap printer paper without bleeding through. The bottle is generous too, so a little goes a long way for everyday study notes.

The 3 oz bottle has lasted me through months of note-taking, and the fluorescent hue still pops on every page without bleeding through. It’s become my go-to for exam prep—my highlights actually stand out now when I flip through my binder.