OPI have recently brought out some new shades of the Nail Envy. While the colour versions used to be exclusive to QVC (at least in the UK) now there is three new shades. Below is two coats shown, and the idea is you get all of the benefits of the normal Nail Envy but with the bonus of a nail colour.
EDIT: OPI have renamed Pink Nail Envy to Hawaiian Orchid, and is no longer a QVC exclusive.
Opacity: Two Coats
This Pink Nail Envy has all of the benefits of standard Nail Envy but in a colour which is great for time saving. Pink Envy I think is only available through QVC.