I like NailNation, but I've been spoiled with some of their blinding holos (like Passionate and Max A Million), so this one did not seem too exciting for me, once it was on the nail. Most times, with dark holographics, such as Marthe, it is hard to see the effect. Especially, if the nail polish is as dense as this one. This was very saturated, almost a one-coater. I even tried it for stamping and it worked very well. Unfortunately, I didn't like this shade of purple too much either, or the finish, both in the shade and in the sun.
2 coats NailNation 3000 Marthe
Sally Hansen Diamond Flash Topcoat