I bought the Lens Flare glow paint to do what I was trying to do with citadel tesseract glow, which turned out to be a terrible, almost-useless effects paint. Lens flare does the job. Also as a bonus it is actually fluorescent, so it glows against a blacklight.
It does seem to have a slightly greenish tinge no matter what color I put it on, even though it looks lemon-yellow in the bottle.