PlainVitamins

C-1000

by Source Naturals Wellness · tablet or pill · 200 tablets

  • On the market (NIH)
  • UPC 0 21078 01033 3
  • DSLD label 80742
  • Serving 1 tablet

C-1000 by Source Naturals Wellness lists 10 ingredients, 10 with an amount per serving of 1 tablet, such as 1,000 mg of vitamin C, 2 mg of zinc, 2 mg of manganese and 100 mg of citrus bioflavonoid complex. Its current label entered the NIH Dietary Supplement Label Database on November 20, 2017.

What is in C-1000?

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).

C-1000: Supplement Facts rows against the market (DSLD label 80742, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Cas Ascorbic Acid, Ascorbyl Palmitate, Calcium AscorbateVitamin C (Form: as Potassium Ascorbate, Ascorbyl Palmitate, Calcium Ascorbate, Manganese Ascorbate, Zinc Ascorbate) (Alt. Name: Ascorbic Acid)1,000 mg1,667%Vitamin C in C-1000 against 18,583 products1,060 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg1,060 mg

Higher than 98% of 18,583 products listing vitamin C (median 100 mg).

Zincas Zinc AscorbateZinc (Form: as Zinc Ascorbate)2 mg13%Zinc in C-1000 against 13,186 products2 mg per serving; the middle half of products list 5 mg to 15 mg, the median 11 mg.DV 11 mgUL 40 mg2 mg

90% of 13,186 products listing zinc give more (median 11 mg).

Manganeseas Manganese AscorbateManganese (Form: as Manganese Ascorbate)2 mg100%Manganese in C-1000 against 7,016 products2 mg per serving; the middle half of products list 1 mg to 3.92 mg, the median 2 mg.DV 2.3 mgUL 11 mg2 mg

38% of 7,016 products listing manganese give more (median 2 mg).

Citrus Bioflavonoid Complex100 mgFlavonoid in C-1000 against 2,343 products100 mg per serving; the middle half of products list 25 mg to 100 mg, the median 50 mg.100 mg

Higher than 62% of 2,343 products listing flavonoid (median 50 mg).

Ascorbyl Palmitate60 mg
Rosehips25 mgRose (unspecified) in C-1000 against 195 products25 mg per serving; the middle half of products list 14.5 mg to 100 mg, the median 30 mg.25 mg

52% of 195 products listing rose (unspecified) give more (median 30 mg).

Rutin25 mgRutin in C-1000 against 1,232 products25 mg per serving; the middle half of products list 10 mg to 50 mg, the median 25 mg.25 mg

37% of 1,232 products listing rutin give more (median 25 mg).

Quercetin25 mgQuercetin in C-1000 against 1,548 products25 mg per serving; the middle half of products list 26.5 mg to 250 mg, the median 100 mg.25 mg

75% of 1,548 products listing quercetin give more (median 100 mg).

Grape seed extractGrape seed extract (Alt. Name: Proanthodyn) PlantPart: seed Note: with a Procyanidolic Value of 9515 mgGrape in C-1000 against 1,900 products15 mg per serving; the middle half of products list 25 mg to 100 mg, the median 50 mg.15 mg

84% of 1,900 products listing grape give more (median 50 mg).

Alpha-Lipoic Acid10 mgAlpha Lipoic Acid in C-1000 against 2,407 products10 mg per serving; the middle half of products list 25 mg to 150 mg, the median 50 mg.10 mg

84% of 2,407 products listing alpha lipoic acid give more (median 50 mg).

Source: NIH ODS Dietary Supplement Label Database, label 80742 (entered November 20, 2017), 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?

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:

  • Its 1,060 mg of vitamin C (2 rows of the label added together) is higher than 98% of the 18,583 vitamin C products that print an amount; 412 list more.
  • 90% of the 13,186 products that print an amount of zinc list more than its 2 mg of zinc (median 11 mg).
  • 84% of the 2,407 products that print an amount of alpha lipoic acid list more than its 10 mg of alpha-lipoic acid (filed by NIH under alpha lipoic acid) (median 50 mg).

The NIH database records one serving 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?

The products whose ingredient lists overlap most with C-1000's, rare ingredients counting for more.

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
Directions: 1 tablet daily.
Warnings
Do not use if either tamper-evident seal is broken or missing.
Keep out of the reach of children.
Note: If you are pregnant, may become pregnant, or breastfeeding, consult your health care professional before using this product.
Allergens and what it does not contain
Contains no yeast, dairy, egg, gluten, soy or wheat. Contains no sugar, starch, salt, preservatives, or artificial color, flavor or fragrance.

Source: label statements in DSLD label 80742.

What else is on the label?

Other ingredients: Sorbitol, Stearic Acid, Silica, Magnesium Stearate.

How many labels does C-1000 have?

3 labels are on file under this name since November 20, 2017: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 295612 Entered August 23, 2023 · off the market July 6, 2022 · 50 tablets · UPC 0 21078 01031 9
  2. Label 80742 (current) Entered November 20, 2017 · on the market · 200 tablets · UPC 0 21078 01033 3
  3. Label 80739 Entered November 20, 2017 · on the market · 50 tablets · UPC 0 21078 01031 9

DSLD also links this label to: C-1000 with Rosehips (package size difference, same product), C-1000 with Rosehips (package size difference, same product), C-1000 with Rosehips (package size difference, same product), C-1000 (package size 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 Source Naturals, Inc. (distributor), Santa Cruz, CA. All Source Naturals Wellness products.

Where next?