Given that it’s Earth Day, we would be remiss to not highlight a Monday Muse dedicated to eco-friendly causes. Enter Josie Maran: supermodel, actress and brains behind her eponymous cosmetics collection that has established itself as a leader in the natural beauty movement. If you have yet to try out the organic product line, let today be the day—order any earth-friendly offerings off her site and you’ll get a free gift (score!) Our current fave from Maran? The Argan Oil Hair Serum—perfect for creating glossy strands!