I guess there is also glow-in-the-dark ink that works in just the absence of light, but none of it is FDA approved cause it contains phosphorus (i guess it's a carcinogen? sketchy).
I don't have anything significant to get tattooed on me, but i thought it's pretty cool and made me reconsider getting one, because i'd pretty much only notice it at the club some times or cosmic bowling.
Also, if you happen to look at other photos, only some of the inks are invisible in normal light, others are just regular colors that glow under UV light.
thoughts?
