Buffered C-500
by Nature's Way · capsule · 250 capsules
- On the market (NIH)
- UPC 0 33674 40321 1
- DSLD label 273382
- Serving 1 capsule
- 250 servings
Buffered C-500 by Nature's Way lists one ingredient: 500 mg of vitamin C per serving of 1 capsule. Its current label entered the NIH Dietary Supplement Label Database on February 21, 2023.
What is in Buffered C-500?
Each row as the label prints it, per serving of 1 capsule. 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 Ascorbic Acid, Calcium Ascorbate | 500 mg | 556% | Higher than 81% of 18,583 products listing vitamin C (median 100 mg). Per day at the most servings: 1,000 mg. |
Source: NIH ODS Dietary Supplement Label Database, label 273382 (entered February 21, 2023), 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 2 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.
- High Potency Vitamin C 500 mgSundown Naturals same ingredients
- Pure Vitamin C-500 mgNature's Bounty · off the market same ingredients
- Vitamin C-500 mg Plus Rose HipsNature's Bounty same ingredients
- Vitamin C 500 mgSundown Naturals same ingredients
- Vitamin C 500 mgVitaCeutical Labs same ingredients
- Bio Complex CVitaCeutical Labs 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
- Recommendation: Take 1 capsule one to two times daily, preferably with food.
- Warnings
- If you are pregnant, nursing, or taking any medications, consult a healthcare professional before use.
- Keep out of reach of children.
- Safety sealed with printed inner seal. Do not use if seal is broken or missing.
- Allergens and what it does not contain
- Gluten free. No yeast-derived ingredients, wheat, soy, dairy, or artificial colors, flavors, or preservatives.
- Storage
- Keep tightly closed. Store at room temperature. Avoid excessive heat and direct sunlight.
Source: label statements in DSLD label 273382.
What else is on the label?
Other ingredients: Gelatin, Cellulose, Magnesium Stearate.
Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Quality Global Sourcing Bottled & Tested In The USA.
How many labels does Buffered C-500 have?
10 labels are on file under this name since December 29, 2014: other sizes, label designs and reformulations. The current one leads this page.
- Label 273382 (current) Entered February 21, 2023 · on the market · 250 capsules · UPC 0 33674 40321 1
- Label 273381 Entered January 23, 2023 · on the market · 100 capsules · UPC 0 33674 40320 4
- Label 259348 Entered January 22, 2022 · off the market December 10, 2021 · 100 capsules · UPC 0 33674 40320 4
- Label 229999 Entered July 23, 2020 · off the market December 10, 2021 · 250 capsules · UPC 0 33674 40321 1
- Label 79718 Entered January 25, 2018 · off the market March 5, 2020 · 250 capsules · UPC 0 33674 40321 1
- Label 79671 Entered October 21, 2017 · off the market September 13, 2021 · 100 capsules · UPC 0 33674 40320 4
- Label 54676 Entered January 25, 2016 · off the market February 15, 2017 · 100 capsules · UPC 0 33674 40320 4
- Label 54678 Entered December 23, 2015 · off the market February 15, 2017 · 250 capsules · UPC 0 33674 40321 1
- Label 40428 Entered December 29, 2014 · off the market November 9, 2015 · 250 capsules · UPC 0 33674 40321 1
- Label 40427 Entered December 29, 2014 · off the market November 9, 2015 · 100 capsules · UPC 0 33674 40320 4
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names Nature's Way Brands, LLC (manufacturer), Green Bay, WI. All Nature's Way products.