It has not been demonstrated to be more bioavailable than any other form of vitamin C supplement.
As a food additive, it has the E number E301 and is used as an antioxidant and an acidity regulator.
It is approved for use as a food additive in the EU,[3] USA,[4] Australia, and New Zealand.
[5] In in vitro studies, sodium ascorbate has been found to produce cytotoxic effects in various malignant cell lines, which include melanoma cells that are particularly susceptible.
After cessation of effervescence, the sodium ascorbate is precipitated by the addition of isopropanol.