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    • What Is Hyaluronic Acid?

      What Is Hyaluronic Acid?

      Health via Yahoo News· 1 year ago

      Hyaluronic acid—also known as hyaluronan or hyaluronate—is a molecule that’s found throughout the body. Hyaluronic acid is a humectant, meaning it binds...

    • What Is a Callus?

      What Is a Callus?

      Verywell Health via Yahoo News· 1 year ago

      A callus is a change in your skin that forms to protect an area subject to constant strain, friction, or pressure. It appears as a dense, flat area of...

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