Nude nail-polish is one of those perma-trends that's here to stay. Classy and low-key, barely-there polish goes with just about everything–but it can be dang hard to get right. One shade off and you end up looking like a victim of jaundice living in Venice Beach circa 1980. Lucky for us non-literal nudists, cult favorite nail-polish brand, RGB, has created a new line of nudes for every mood and skin tone in collaboration with eco-minded celebrity manicurist Jenna Hipp. Plus, like all of Jenna's nail necessities, these shades are totally green: Earth-friendly, paraben-free, and, in case you want to eat it, gluten-free. Thanks to Hipp x RGB, you've got four new reasons to add nudes to your nail polish arsenal.