Buffered Vitamin C 500 mg
by Swanson · tablet or pill · 250 tablets
- Off the market since January 2024 (NIH)
- UPC 0 87614 01948 2
- DSLD label 308487
- Serving 1 tablet
- 250 servings
Buffered Vitamin C 500 mg by Swanson lists 2 ingredients, 2 with an amount per serving of 1 tablet, such as 500 mg of vitamin C and 56 mg of calcium. Its current label entered the NIH Dietary Supplement Label Database on February 22, 2024.
What is in Buffered Vitamin C 500 mg?
Each row as the label prints it, per serving of 1 tablet. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).
| Ingredient | Amount | % DV | Among products listing it |
|---|---|---|---|
| Vitamin Cas Calcium Ascorbate | 500 mg | 556% | Higher than 81% of 18,583 products listing vitamin C (median 100 mg). Per day at the most servings: 1,500 mg. |
| Calciumas Calcium Ascorbate | 56 mg | 4% | 70% of 17,831 products listing calcium give more (median 115 mg). Per day at the most servings: 168 mg. |
Source: NIH ODS Dietary Supplement Label Database, label 308487 (entered February 22, 2024), version 9.4.0. See the label on DSLD or its label image (PDF). Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.
Is that a lot?
Every amount on this label with a position sits within the middle 80% of the products that list the same ingredient.
The NIH database records 1 to 3 servings a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.
The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.
Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.
Which products have the closest formulas?
6 products list the very same ingredients; the nearest amounts come first.
- Buffered CSwanson Premium Brand · off the market same ingredients
- Mild C 500 mgCarlson same ingredients
- Buffered C-500 mgSpecialty Pharmacy · off the market same ingredients
- Vitamin C Ascorbyl PalmitateBronson same ingredients
- Non-Acid Vitamin C-500Windmill · off the market same ingredients
- Buffered Vitamin C 500 mg Calcium AscorbateGood 'N Natural · off the market same ingredients
Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.
What does the label say about taking it?
Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.
- Directions
- Suggested use: As a dietary supplement, take one tablet one to three times per day with food and water.
- Warnings
- Warning: For adults only. Keep out of reach of children.
- Consult your physician before using this or any product if you are pregnant or nursing, taking medication or have a medical condition.
- Do not use if seal is broken.
- Storage
- Store in a cool, dry place.
Source: label statements in DSLD label 308487.
What else is on the label?
Other ingredients: Microcrystalline Cellulose, Polyvinylpyrrolidone, Aqueous Film Coating, Stearic Acid, Croscarmellose Sodium, Magnesium Stearate.
How many labels does Buffered Vitamin C 500 mg have?
One label is on file, entered on February 22, 2024.
- Label 308487 (current) Entered February 22, 2024 · off the market January 24, 2024 · 250 tablets · UPC 0 87614 01948 2
DSLD also links this label to: Buffered C (image difference, same product), C 500 mg (image difference, same product).
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names Swanson Health Products (distributor), Fargo, ND. All Swanson products.