THE NAIL ENVY STRENGTH IN COLOR COLLECTION The Nail Envy Strength in Color Collection combines the fortifying power of OPI’s Original Nail Envy Nail Strengthener combined with softly tinted color in four must-have OPI shades. Now, the trusted formula you love—from the world’s number one salon brand, OPI—has added delicate, feminine color for the very first time. Infused with hydrolyzed wheat protein and calcium, the new Nail Envy Strength in Color Collection delivers maximum strengthening…