Calcium Ascorbate Buffered Vitamin C

by PureBulk.com · powder · 100 g

  • On the market (NIH)
  • DSLD label 23042
  • Serving 500 to 1,000 mg; amounts per 1,000 mg
  • 100 servings

Calcium Ascorbate Buffered Vitamin C by PureBulk.com lists 2 ingredients, 2 with an amount per serving of 1,000 mg, such as 816 mg of vitamin C and 100 mg of calcium. Its current label entered the NIH Dietary Supplement Label Database on June 25, 2013.

What is in Calcium Ascorbate Buffered Vitamin C?

Each row as the label prints it, per serving of 1,000 mg. 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).

Calcium Ascorbate Buffered Vitamin C: Supplement Facts rows against the market (DSLD label 23042, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Cas Calcium AscorbateVitamin C (Form: as Calcium Ascorbate)816 mg1,359%Vitamin C in Calcium Ascorbate Buffered Vitamin C against 18,583 products816 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg816 mg

Higher than 90% of 18,583 products listing vitamin C (median 100 mg). Per day at the most servings: 2,448 mg. 1.2 times the adult UL a day.

Calciumas Calcium AscorbateCalcium (Form: as Calcium Ascorbate)100 mg10%Calcium in Calcium Ascorbate Buffered Vitamin C 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). Per day at the most servings: 300 mg.

Source: NIH ODS Dietary Supplement Label Database, label 23042 (entered June 25, 2013), 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:

  • At 3 servings a day, the most its directions give, the label lists 2,448 mg of vitamin C, 1.2 times the adult Tolerable Upper Intake Level.

The NIH database records 1 to 3 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.

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: As a dietary supplement, take 500 mg (scant 1/8 tsp) to 1000 mg (scant 1/4 tsp), preferably with meals, up to three times daily, or as directed by physician.
Warnings
Warning: This product is not intended for use by those with a serious medical condition or pregnant or lactating women.
Keep out of reach of children.
Allergens and what it does not contain
Free of: sugar, soy, dairy, yeast, gluten, corn and additives.
Storage
Storage: Keep dry, cool & dark

Source: label statements in DSLD label 23042.

What else is on the label?

Other ingredients: None.

How many labels does Calcium Ascorbate Buffered Vitamin C have?

One label is on file, entered on June 25, 2013.

  1. Label 23042 (current) Entered June 25, 2013 · on the market · 100 g

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

Who makes it?

The label names PureBulk.com (manufacturer), Roseburg, OR. All PureBulk.com products.

Where next?