Halal Nail Polish? Nova Nails

I recently discovered Nova Nails nail polish online after searching for a real "halal" nail polish.. something I've been looking for the last couple years actually, so I thought it would be perfect to try in Ramadan.
I have a couple Inglot O2M "breathable" nail polishes which are supposedly also halal but I've there's always a slight niggle that makes me worry that it's not fully halal so when I stumbled across these Nova washable nail polishes, I was over the moon!
Admittedly it comes with pros and cons, read on to see what these are and a demo video of how it works!