Strengthening serum for combination skin types. An icon of the RATIONALE line-up, this sophisticated serum supports skin barrier defense with a proprietary B-Group Vitamin Complex, including niacinamide, restoring radiance as it amplifies hydration. Ideal as part of your morning routine, it helps to rebalance skin tone and improves skin clarity. Benefits Hydrates, nourishes, enhances radiance, targets dehydration, fine lines and wrinkles, bleaches, and congestion. The Ritual is the first step in your daytime routine. Smooth 2-3 drops gently over face, neck, décolletage and backs of hands. Key Ingredients Vitamin B Complex, including niacinamide, strengthens barrier function, calms visible redness, and brightens tone. Skin Soothing Actives deeply nourish the skin for a calmer-looking complexion. Intercellular lipids optimize hydration and reduce Trans-Epidermal Water Loss. The Results 91% reported improved skin hydration 82% experienced enhanced skin nourishment. 82% saw a boost in complexion radiance. (*Based on a 56-day trial with 22 participants) About RATIONALE Since 1992, RATIONALE has been delivering its signature glow with a luxurious suite of skincare formulations and facial treatments. From their world-leading research laboratories outside Melbourne, they combine superlative Australian solar research with proprietary Skin Identical technology to create formulations that work synergistically with skin—and each other—to deliver unparalleled environmental skin protection by day and radiant repair by night. The result is Luminous Skin for Life. 1 oz./ 30 mL