Used as an antioxidant in food preservation, sodium ascorbate helps prevent spoilage by inhibiting oxidation in processed foods and beverages. It maintains freshness and extends shelf life, commonly found in cured meats, canned fruits, and packaged snacks.

In pharmaceuticals, it serves as a vitamin C source in supplements and injectable formulations, offering better stomach tolerance than ascorbic acid.

It is also used in skincare products for its antioxidant properties, helping to reduce signs of aging and protect against environmental damage.

Industrial applications include its use in water treatment and as a reducing agent in chemical processes.