Description
Ester-C is a patented, buffered form of vitamin C, and Sisu, a Canadian brand, packages it with citrus bioflavonoids in a vegan capsule. The selling point is gentleness rather than a big number on the label.
Who it may suit
Anyone who gets heartburn from ascorbic acid, and people who want a moderate dose rather than a full gram, should consider it.
What the label says
What Sisu states:
- Specialized formulation with improved bioavailability compared with regular vitamin C, according to the brand.
- Designed for absorption and retention for up to 24 hours.
- Non-acidic and described as gentle on the stomach.
- Citrus bioflavonoids are added.
- Vegan, non-GMO, gluten-free and dairy-free; 600 mg of Ester-C per serving.
How it compares
At 600 mg per serving it sits between 500 mg caplets and 1,000 mg capsules. The buffered, non-acidic form is similar in purpose to the Webber Naturals Stomach Friendly capsule. Sisu is Canadian, so look for the NPN on the bottle. With 120 capsules, check the label for capsules per serving to work out how long it lasts.
If you take other supplements, read their labels too. Many multivitamins, electrolyte drinks and immune blends already contain vitamin C, and doubling up is easy. Adding the figures together takes a minute and helps you stay within a sensible daily total.
Tips for taking vitamin C
Count everything: a multivitamin, a drink mix and this product together can add up quickly, and the upper limit is 2,000 mg a day for adults, the tolerable upper intake level set out by Health Canada and the U.S. National Institutes of Health. Taking servings with meals and spacing them out helps if you notice heartburn or loose stools. If you have had kidney stones, or you take prescription drugs, a quick conversation with your pharmacist is worthwhile.
General information, not medical advice. As an Amazon Associate, VitaminC.one earns from qualifying purchases.
