That’s *The Ordinary Hyaluronic Acid 2% + B5*, 30 mL/1 fl oz U.S. dropper bottle. *Short summary:* - *Use*: Hydrating water-based serum for face - *Key actives*: 2% Hyaluronic Acid complex + Vitamin B5 (Panthenol) + Ceramides - *Claim*: Provides multi-depth hydration, plumps fine lines from dehydration, and supports skin barrier repair - *Texture*: Clear, slightly viscous gel-serum that can feel tacky if applied wrong - *Best for*: All skin types, especially dehydrated, tight, or flaky skin. Safe for sensitive skin HA is a humectant that pulls water into the skin. This version uses low, medium, and high molecular weight HA to hydrate different skin layers. B5 enhances surface hydration and healing. Key tip: apply to damp skin and seal with moisturizer immediately, otherwise it can pull water _out_ of your skin in dry climates. Use AM and/or PM after cleansing, before oils and creams. It plays well with almost everything.