It's a linear holographic polish which you can also see in the shade:
In the sun (or in this case: with flash) the stunning holo comes fully to life (please excuse my ghostly white hands, my flash always does this to me *sobs*):
*as always, please click to enlarge*
The formula is absolutely fantastic, you can get away with only one coat because the formula is on the thicker side.
If you like holos, this one is definitely worth getting!
Thanks for looking :-)