Just thought I'd share. I bought a rimmel gel colour which chipped so I invested in the top coat. My nail varnish stays on for a week and is quicker and easier than gel nails under a U. V. light which I was previously doing at home. But here's the best bit...
It will work over other nail varnish!
I'm currently using it with Essie and it's brilliant.
To clarify, this is their gel range but it air dries and quite quickly too.