The department store beauty floor can be an assault on the senses, but five Saks Fifth Avenue (800/347-9177, outposts around the country are introducing a Zen vibe by partnering with two big names in the spa world: Canyon Ranch and Blue Lagoon, Iceland’s cultlike wellness destination. Each has developed its own private line of products, sourcing indigenous ingredients. Saks is also making each spa’s signature experience more accessible with a range of programs, such as nutrition and exercise counseling, water tastings, and even calming in-store yoga classes.