The system tries to get the most color variety out of your nail polishes. After applying a nail primer, you pick the color you want from a color chart, then you see what base color and what glaze that color corresponds to. Instead of applying two coats of the same polish like you usually do, you apply one coat of the base color (a high shine polish), and one coat of the glaze (a sheer color shade finish). Three base and three glaze polishes allow for 18 different nail polish shades. That said, the achievable hues are not insanely different from one another (see above), but I still find the concept pretty awesome and the set of six shades is only $29.99. I won’t be parting ways with my Lippmanns, essies, and Estee Lauders any time soon (sorry boyfriend!), but if you’re not OCD about your nail color (I’m convinced it effects my mood since I type all day with direct view of my nails…), this is definitely worth looking into.