This is Sinful Colors All About You and Sephora by OPI I Only Shop Vintage:
I'm not looking it up but last I knew All About You was still available. And of course anything S-OPI is not. (Somebody needs to dupe this one, though.)
Added: Nouveau Cheap has All About You in her top 10 SC polishes as a topper - she agrees that by itself it's nothing special.