So a week or two ago I dyed a friends hair. I mixed special effects devilish and special effects nuclear red just because I didn't have a lot of either ( but ended up having enough for half my head left over).
I'm not sure if either of these are uv reactive, but now that I've plugged in my black light I've discovered something amazing. My hair glows bright orange.
It's red in normal light. 
Fairly normal red actually.
Now, it's a bit faded at the moment but still pretty red but bam. Glowing.
I'm overjoyed and amazed and if you're ever around black lights its fun to blow people away when your hair that isn't a neon color does this.
