Simple Booster Serum HA + B5 - 30ml3% Hyaluronic Acid & Vitamin B Serum What It Does This intensely hydrating booster is formulated with a powerful 3% blend of Hyaluronic Acid, Vitamin B5, and PENTAVITIN to deeply moisturize, soothe, and soften the skin. Designed to lock in long lasting hydration, it helps skin appear plumper, smoother, and more youthful from within, while strengthening the skins natural moisture barrier. Key Benefits Deep & Long Lasting Hydration Plumps & Smooths Skin