4. Oribe Gold Lust nourishing hair oil ($48, oribe.com).
There’s a reason this stuff is called Gold Lust: It’s like liquid gold for your hair. Argan, jasmine, and cassis seed oil soften, condition, and moisturize hair without weighing it down; shea butter repairs damage and protects against further damage; and the whole concoction leaves your locks silky smooth, under control. Also, it smells GREAT. Definitely one of my favorites.