What it is: A lightweight, powerfully hydrating face serum that nurtures skin with sea-sourced energy for your most radiant, healthy-looking, complexion yet. What it does:This soothing, high-speed serum creates a microcloud of moisture, a haven of healthy-looking radiance where skin can thrive. It is formulated with tiny microdroplets of the Deep Hydration Ferment™ that flood skin with nurturing hydration, tapping into skin's moisture for the appearance of youthful vitality. The serum revitalizes skin and infuses it immediate hydration. It is lightweight, refreshing and deeply replenishing.Key ingredients:- Miracle Broth™: floods skin with energy, helping bring it back to its healthiest center- Deep Hydration Ferment™: tiny microdroplets designed to be absorbed rapidly, flooding skin with nourishing hydration on contact- Youth Activating Ferment™: delivers ultrapowered marine peptides and vital nutrients to help support natural repairHow to use: Apply the face serum onto fingertips and gently sweep 1-2 drops over your face and neck morning and evening as part of your daily skin-care regimen. For optimal results, follow with your La Mer moisturizer (sold separately).Pro tips: Smooth on a second serum after The Revitalizing Hydrating Serum to multitask your way to idyllic radiance. 1 oz. Paraben-free; sulfate-free; phthalate-free