As you might imagine, Cruz has an abundance of Lancôme makeup and skincare at her disposal because of her status as the brand's ambassador. And while she's openly expressed her love for so many of the products (like the Multi-Action Eye Cream and Bendable Liquid Eyeliner), Cruz's favorite by far is the Advanced Genifique Youth Activating Serum, according to an interview with Instyle. The serum is definitely on the pricey side (it's a little under $180 per bottle), but it's been named a cult-favorite by beauty lovers everywhere. The serum's key ingredient is bifidus extract, which helps protect the skin's barrier and in turn keeps your skin smooth and glowy.
