Booster Serums are a cocktail of nourishing ingredients added to Deluxe and Platinum HydraFacials, used to address your specific skincare goals.   Booster Serums typically include ingredients such as Vitamin C, Hyaluronic Acid, Tranexamic Acid, Glycolic Acid, Retinol, Peptides, and more.   Learn more about some of our top picks for Booster Serums here.