PlainVitamins

Buffered Ascorbic Acid Powder

by Pure Encapsulations · powder · 8 ounces

  • On the market (NIH)
  • UPC 7 66298 01973 4
  • DSLD label 293917
  • Serving 2.2 g (1 Rounded Scoop)
  • 103 servings

Buffered Ascorbic Acid Powder by Pure Encapsulations lists 4 ingredients, 4 with an amount per serving of 2.2 g, such as 1,220 mg of vitamin C, 100 mg of calcium, 60 mg of magnesium and 20 mg of potassium. Its current label entered the NIH Dietary Supplement Label Database on July 18, 2023.

What is in Buffered Ascorbic Acid Powder?

Each row as the label prints it, per serving of 2.2 g. 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 Ascorbic Acid Powder: Supplement Facts rows against the market (DSLD label 293917, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Cas Calcium Ascorbate, Magnesium Ascorbate, Potassium Ascorbate1,220 mg1,356%Vitamin C in Buffered Ascorbic Acid Powder against 18,583 products1,220 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg1,220 mg

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

Calciumas Calcium Ascorbate100 mg8%Calcium in Buffered Ascorbic Acid Powder 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).

Magnesiumas Magnesium Ascorbate60 mg14%Magnesium in Buffered Ascorbic Acid Powder against 14,003 products60 mg per serving; the middle half of products list 30 mg to 200 mg, the median 86 mg.UL 350 mgDV 420 mg60 mg

56% of 14,003 products listing magnesium give more (median 86 mg).

Potassiumas Potassium Ascorbate20 mg1%Potassium in Buffered Ascorbic Acid Powder against 11,614 products20 mg per serving; the middle half of products list 50 mg to 190 mg, the median 99 mg.DV 4,700 mg20 mg

89% of 11,614 products listing potassium give more (median 99 mg).

Source: NIH ODS Dietary Supplement Label Database, label 293917 (entered July 18, 2023), 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 1,220 mg of vitamin C is higher than 98% of the 18,583 vitamin C products that print an amount; 297 list more.
  • 89% of the 11,614 products that print an amount of potassium list more than its 20 mg of potassium (median 99 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?

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
Recommendations: as a dietary supplement, take 1 rounded scoop (2.2 g) daily, or as directed by a health professional.
Warnings
Warning: if you are pregnant or lactating, have any health condition or are taking any medication, consult your health professional before use.
Keep out of reach of children.
Use only if safety seal is intact.
Allergens and what it does not contain
Gluten-free, non-GMO & hypoallergenic
Certified Gluten-Free by the Gluten-free Certification Organization www.gluten.org
Storage
Store in a cool, dry place.

Source: label statements in DSLD label 293917.

What else is on the label?

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): GFCO.org (Gluten-Free Certification Organization). Listed with: Certified gluten-free (GFCO) (a seal is the label's claim; the certifier's own list confirms it).

How many labels does Buffered Ascorbic Acid Powder have?

2 labels are on file under this name since May 22, 2020: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 293917 (current) Entered July 18, 2023 · on the market · 8 ounces · UPC 7 66298 01973 4
  2. Label 219353 Entered May 22, 2020 · off the market March 15, 2020 · 8 ounces · UPC 7 66298 01973 4

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

Who makes it?

The label names Pure Encapsulations (manufacturer), Sudbury, MA. All Pure Encapsulations products.

Where next?