Essie Gel Couture Last Nightie gel nail polish is a stunning shimmery lilac nude longwear nail colour with a sheer irridesant finish. This fantasy shade will make sure your mani sparkles in any light. Essie Gel Couture nail polish is an extravagantly sophisticated collection, crafted to perfection and fashioned to last. Designed with the haute vision of couture and up to 12 days wear applied in an easy, 2-step system.