C' Plus
by Klaire Labs · capsule · 90 vegetarian capsules
- Off the market since February 2025 (NIH)
- UPC 8 17234 01228 6
- DSLD label 264805
- Serving 2 capsules
- 45 servings
C' Plus by Klaire Labs lists 2 ingredients, 2 with an amount per serving of 2 capsules, such as 1,730 mg of vitamin C and 224 mg of citrus bioflavonoids. Its current label entered the NIH Dietary Supplement Label Database on July 21, 2022.
What is in C' Plus?
Each row as the label prints it, per serving of 2 capsules. 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, L-Ascorbic Acid | 1,730 mg | 1,922% | Higher than over 99% of 18,583 products listing vitamin C (median 100 mg). Per day at the most servings: 3,460 mg. 1.7 times the adult UL a day. |
| Citrus Bioflavonoidsas Citrus aurantium, Citrus aurantiumStandardized to 50% Hesperidin Bioflavonoids | 224 mg | Higher than 88% of 2,343 products listing flavonoid (median 50 mg). Per day at the most servings: 448 mg. |
Source: NIH ODS Dietary Supplement Label Database, label 264805 (entered July 21, 2022), 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?
The rows in the top or bottom tenth of the products that list the same ingredient, and any above the adult upper limit at the most servings a day the directions give:
- At 2 servings a day, the most its directions give, the label lists 3,460 mg of vitamin C, 1.7 times the adult Tolerable Upper Intake Level.
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.
- C 1,000 mgSwanson same ingredients
- PureWay-C 1,000 mg Vitamin C with BioflavonoidsSwanson Ultra · off the market same ingredients
- Vitamin C 1000Patient One MediNutritionals same ingredients
- C - 1000 TrNutri-West same ingredients
- Hi-Potency Vitamin C/Bioflavonoid ComplexVQ Verified Quality same ingredients
- C-500 Complex 500 mgThe Vitamin Shoppe 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: 2 capsules, 1 or 2 times daily with food or as directed by a healthcare professional.
- Warnings
- Caution: If you are pregnant, nursing, have a medical condition, or taking prescription drugs, consult your physician before using this product.
- Keep out of reach of children.
- Do not use if shrinkwrap is broken or missing.
- Allergens and what it does not contain
- Free of the following common allergens: Milk/casein, eggs, fish, shellfish, tree nuts, peanuts, wheat, gluten, soybeans, and yeast. Contains no artificial colors, flavors, or preservatives.
- Storage
- Store in a cool, dry place (59 degrees F - 85 degrees F) away from direct light.
Source: label statements in DSLD label 264805.
What else is on the label?
Other ingredients: Hydroxypropyl Methylcellulose, Water, Silicon Dioxide.
How many labels does C' Plus have?
One label is on file, entered on July 21, 2022.
- Label 264805 (current) Entered July 21, 2022 · off the market February 18, 2025 · 90 vegetarian capsules · UPC 8 17234 01228 6
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names SFI USA (manufacturer), Reno, NV. All Klaire Labs products.