butter London’s edgy color nail polishes are a cult favorite partly because they’re formulated without formaldehyde, toluene, dibutyl phthalate, or parabens (all nasty chemicals that have been associated with health issues). For an easy and chic gift, pick up one of the Lips & Tips sets with matching lip gloss and nail polish. $25; Dragonfly Apparel, 3615 W. 32nd Ave., 303-433-6331