Ester-C is a unique, exclusive form of buffered Vitamin C providing you with antioxidants and immune system support. Ester-C also helps in the development and maintenance of bones, teeth, gums, and skin. Ester-C is non-acidic and stomach friendly, so you can take it all year long. After all, you don't want your immune system unsupported when you need it most. Take Ester-C every day and you will "C" the difference!