PlainVitamins

Buffered Magnesium Oxide 180 mg

by Kirkman · capsule · 250 capsules

  • On the market (NIH)
  • UPC 8 12325 02082 9
  • DSLD label 317693
  • Serving 1 to 2 capsules; amounts per 1 capsule
  • 250 servings

Buffered Magnesium Oxide 180 mg by Kirkman lists 2 ingredients, 2 with an amount per serving of 1 capsule, such as 20 mg of vitamin C and 180 mg of magnesium. Its current label entered the NIH Dietary Supplement Label Database on September 25, 2024.

What is in Buffered Magnesium Oxide 180 mg?

Each row as the label prints it, per serving of 1 capsule. 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 Magnesium Oxide 180 mg: Supplement Facts rows against the market (DSLD label 317693, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Cas Ascorbic Acid20 mg22%Vitamin C in Buffered Magnesium Oxide 180 mg against 18,583 products20 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg20 mg

90% of 18,583 products listing vitamin C give more (median 100 mg).

Magnesiumas Magnesium Oxide180 mg43%Magnesium in Buffered Magnesium Oxide 180 mg against 14,003 products180 mg per serving; the middle half of products list 30 mg to 200 mg, the median 86 mg.UL 350 mgDV 420 mg180 mg

Higher than 74% of 14,003 products listing magnesium (median 86 mg).

Source: NIH ODS Dietary Supplement Label Database, label 317693 (entered September 25, 2024), 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:

  • 90% of the 18,583 products that print an amount of vitamin C list more than its 20 mg of vitamin C (median 100 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
Suggested use: Take one to two capsules daily or as directed by a physician.
Warnings
Keep out of reach of children. Formulated for adults. For children, consult a physician.
Caution: Magnesium supplements can cause changes in stool consistency and bowel habits. If this occurs, discontinue use and discuss this matter with your physician.
Allergens and what it does not contain
Free of: Milk, eggs, fish, shellfish, tree nuts, peanuts, wheat, soy, and sesame
Gluten-free
Storage
Important: Store in a cool dry place and tightly capped.

Source: label statements in DSLD label 317693.

What else is on the label?

Other ingredients: Hypromellose, Water, Silicon Dioxide.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Ultra tested cGMP.

How many labels does Buffered Magnesium Oxide 180 mg have?

3 labels are on file under this name since October 25, 2013: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 317693 (current) Entered September 25, 2024 · on the market · 250 capsules · UPC 8 12325 02082 9
  2. Label 296958 Entered September 25, 2023 · off the market August 19, 2023 · 250 capsules · UPC 8 12325 02082 9
  3. Label 23898 Entered October 25, 2013 · off the market August 25, 2022 · 250 capsules

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

Who makes it?

The label names Kirkman (manufacturer), Lake Oswego, OR. All Kirkman products.

Where next?