Butter London: We love the bold runway-inspired shades and cool top-coat effects.
SpaRitual: Not surprisingly, you'll find this line in lots of high-end nail salons.
RGB: This brand attracts all the cool girls with its edgy shades and collaborators.
Deborah Lippman: The star manicurist brought all of her star savvy to her own line, which is five-free (toluene, formaldehyde, formaldehyde resin, camphor, or DBP, and isn't tested on animals).
NARS: All we can say is that beauty editors are certifiably obsessed with this luxe range and for good reason!