PlainVitamins

Buffered C-1000 Complex

by NOW · tablet or pill · 90 tablets

  • On the market (NIH)
  • UPC 7 33739 00700 1
  • DSLD label 335212
  • Serving 1 tablet
  • 90 servings

Buffered C-1000 Complex by NOW lists 5 ingredients, 5 with an amount per serving of 1 tablet, such as 1 g of vitamin C, 100 mg of calcium, 250 mg of citrus bioflavonoid complex and 50 mg of acerola fruit extract. Its current label entered the NIH Dietary Supplement Label Database on July 24, 2025.

What is in Buffered C-1000 Complex?

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).

Buffered C-1000 Complex: Supplement Facts rows against the market (DSLD label 335212, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Cas Calcium Ascorbate1,000 mg1 g1,111%Vitamin C in Buffered C-1000 Complex against 18,583 products1,000 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg1,000 mg

Higher than 91% of 18,583 products listing vitamin C (median 100 mg).

Calciumas Calcium Ascorbate100 mg8%Calcium in Buffered C-1000 Complex against 17,831 products100 mg per serving; the middle half of products list 50 mg to 252 mg, the median 115 mg.DV 1,300 mgUL 2,500 mg100 mg

53% of 17,831 products listing calcium give more (median 115 mg).

Citrus Bioflavonoid Complex250 mgFlavonoid in Buffered C-1000 Complex against 2,343 products250 mg per serving; the middle half of products list 25 mg to 100 mg, the median 50 mg.250 mg

Higher than 88% of 2,343 products listing flavonoid (median 50 mg).

Acerola fruit extractcomplex50 mgAcerola in Buffered C-1000 Complex against 436 products50 mg per serving; the middle half of products list 14.5 mg to 300 mg, the median 60 mg.50 mg

54% of 436 products listing acerola give more (median 60 mg).

Rutinas Sophora japonicacomplex50 mgRutin in Buffered C-1000 Complex against 1,232 products50 mg per serving; the middle half of products list 10 mg to 50 mg, the median 25 mg.50 mg

Higher than 69% of 1,232 products listing rutin (median 25 mg).

Source: NIH ODS Dietary Supplement Label Database, label 335212 (entered July 24, 2025), 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:

  • Its 1,000 mg of vitamin C is higher than 91% of the 18,583 vitamin C products that print an amount; 445 list more.

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?

6 products list the very same ingredients; the nearest amounts come first.

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 usage: Take 1 tablet daily.
Warnings
Caution: For adults only. Keep out of reach of children.
Consult physician if pregnant/nursing, taking medication, or have a medical condition.
Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish, tree nut or sesame ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.
Allergens and what it does not contain
Non-GMO
Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish, tree nut or sesame ingredients.
Storage
Store in a cool, dry place after opening.

Source: label statements in DSLD label 335212.

What else is on the label?

Other ingredients: Hydroxypropyl Cellulose, Hypromellose, Stearic Acid, Maltodextrin, Hypromellose, Stearic Acid, Sunflower Lecithin, Triethyl Citrate, Sunflower Oil, Magnesium Stearate, Silicon Dioxide, Caramel.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Triangle K (Kosher); GMP Quality Assured.

How many labels does Buffered C-1000 Complex have?

7 labels are on file under this name since January 25, 2017: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 335212 (current) Entered July 24, 2025 · on the market · 90 tablets · UPC 7 33739 00700 1
  2. Label 313627 Entered June 20, 2024 · on the market · 180 tablets · UPC 7 33739 00702 5
  3. Label 313626 Entered May 23, 2024 · off the market January 21, 2025 · 90 tablets · UPC 7 33739 00700 1
  4. Label 70271 Entered February 24, 2017 · off the market February 12, 2024 · 180 tablets · UPC 7 33739 00702 5
  5. Label 70270 Entered February 24, 2017 · off the market March 12, 2025 · 90 tablets · UPC 7 33739 00700 1
  6. Label 69570 Entered January 25, 2017 · off the market November 30, 2016 · 180 tablets · UPC 7 33739 00702 5
  7. Label 69544 Entered January 25, 2017 · off the market November 30, 2016 · 90 tablets · UPC 7 33739 00700 1

Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).

Who makes it?

The label names NOW FOODS (manufacturer), Bloomingdale, IL. All NOW products.

Where next?