Sodium ascorbate and ascorbic acid are both vitamin C. They differ in two ways, acidity and sodium content. Here is what JECFA and the NIH say.

Filipino adults need 70 mg of vitamin C per day for men and 60 mg for women, far below what most labels suggest. The Philippine upper intake reference for adults is 1,000 mg per day, and the labelled daily amount on the product you buy is the figure approved for that specific product.

How to choose the best vitamin C in the Philippines: seven checks on form, acidity, dose, FDA registration, price per milligram, accountability, and supply.