Rachel Bilson's Must Haves: From a Flavored Lip Balm to a Jalapeño Tequila

Whether she's gearing up for a slow morning at home or prepping her skin for a day on set, Bilson relies on this Murad Hydro-Dynamic Ultimate Moisture ($85) to keep her skin looking "hydrated and fresh" — even during the notoriously dry summer months. "Moisturizer is so important to wear every day, but especially those days when I know I'm going to be on camera," she says.

Pro Tip: This product can be used day or night, but it works best in a morning skin-care routine. Simply wash your face, apply the moisturizer over your face, neck, and chest, then cap off your regimen with an SPF product to better lock in moisture and protect the skin.