Lauren London's Must Haves: From a Cozy Tea to a Calming Complexion Serum

With a lifestyle as busy as hers, London notes that staying hydrated is essential — which is precisely why she has this Essentia Bottled Water ($23, originally $24) with her wherever she goes.

Pro Tip: Whenever she's working, London likes to turn her trailer into "a sanctuary," with plenty of nourishing essentials to go around — in addition to her water. "You are the moving sanctuary in yourself. So, if I can't do my entire morning routine when I wake up and have to be on set really early, I try to fit in at least five minutes in the morning with God. But also if I'm working, [I'll] bring certain crystals with me. I bring oil diffusers on set also."