Polyphenol-C 500
by Allergy Research Group · capsule · 90 vegetarian capsules
- On the market (NIH)
- UPC 7 13947 77620 3
- DSLD label 258486
- Serving 1 capsule
- 90 servings
Polyphenol-C 500 by Allergy Research Group lists 8 ingredients, 2 with an amount per serving of 1 capsule, such as 500 mg of vitamin C and 80 mg of berry polyphenols; 6 sit inside a blend without their own amounts. Its current label entered the NIH Dietary Supplement Label Database on January 22, 2022.
What is in Polyphenol-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 Acidnon-GMO | 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. |
| Polyphenol-C Proprietary Blend | 800 mg | ||
| Berry Polyphenolsfrom 800 mg Polyphenol-C Proprietary Blend | 80 mg | 47% of 249 products listing polyphenols give more (median 80 mg). Per day at the most servings: 160 mg. | |
| Polyphenol-C Proprietary Blend | 800 mg | ||
| Grape extract | in the blend, no amount given | ||
| Blueberry extract | no amount given | ||
| Cranberry extract | no amount given | ||
| Blackberry Whole Fruit Concentrate | no amount given | ||
| Raspberry Concentrate | no amount given | ||
| Strawberry Concentrate | no amount given |
Source: NIH ODS Dietary Supplement Label Database, label 258486 (entered January 22, 2022), version 9.4.0. See the label on DSLD. 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; 6 ingredients sit inside a blend, so their amounts cannot be compared.
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?
1 product lists the very same ingredients; the nearest amounts come first.
- Polyphenol-C Complex 500 mgDoctor's Best same ingredients
- Vitamin C & Polyphenols Immunity ComplexBiovia 7 shared, 81% alike
- Non-GMO Vitamin C 500 with Berry PolyphenolsNurtiCology 7 shared, 75% alike
- Fruit Full Anti-Oxidant Extracts Bulk PowderProCaps Laboratories 8 shared, 47% alike
- Fruit Full Anti-Oxidant ExtractsProCaps Laboratories 8 shared, 47% alike
- BioCgel Buffered Vitamin C With BerryRichNatural Factors · off the market 6 shared, 47% alike
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, 1 capsule one or two times daily with or without food, or as directed by a healthcare practitioner.
- Storage
- Keep in cool, dry place, tightly capped.
Source: label statements in DSLD label 258486.
What else is on the label?
Other ingredients: Hydroxypropyl Methylcellulose, Stearic Acid, Silicon Dioxide.
How many labels does Polyphenol-C 500 have?
One label is on file, entered on January 22, 2022.
- Label 258486 (current) Entered January 22, 2022 · on the market · 90 vegetarian capsules · UPC 7 13947 77620 3
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names Allergy Research Group (distributor), South Salt Lake, UT. All Allergy Research Group products.