This ultramodern luxury apothecary and spa stocks its clean-lined shelves with high-end (and often hard-to-find) products from all over the world. Covering hair, skin care, and makeup, Bluemercury is a haven for lovers of Bumble and Bumble, Frederic Fekkai, Laura Mercier, Nars, Dermalogica, Paula Dorf, and Phyto.