Immune 24 Hour is a dietary supplement provides 24-hour immune support through its main ingredient, Ester C 500 mg. This is a form of vitamin C that is said to be absorbed and retained by the body for up to 24 hours, unlike standard vitamin C supplements. The supplement also contains other immune-boosting ingredients such as vitamin D, zinc, and elderberry extract. It is marketed as a way to help support the immune system and protect against illnesses and infections. However, it is important to note that dietary supplements like Immune 24 Hour are not regulated by the FDA and their effectiveness and safety may vary. It is always best to consult with a healthcare professional before starting any new supplement regimen.

Ester-C Tablets contain 500 mg of Vitamin C per serving and give you support you can count on all day, every day. A daily dose of Ester-C gets into your white blood cells and stays there for up to 24 hours, which is longer than regular Vitamin C. Plus, Ester-C is manufactured without chemical solvents to neutralize pH, which means it's non-acidic and gentle on your stomach.