Vitamin C powder (magnesium ascorbate)
Vitamin C in the buffered form of magnesium ascorbate is suitable for people who have less tolerance for ascorbic acid. Because magnesium ascorbate is less acidic than ascorbic acid, it gives virtually no gastrointestinal problems. If a higher intake of vitamin C is desired, it is therefore best to opt for a non-acidic form such as magnesium ascorbate.
Vitamin C as magnesium ascorbate is also available in capsules.