Ultra-Pure Calcium

by Purity Products · tablet or pill · 120 tablets

  • On the market (NIH)
  • DSLD label 244274
  • Serving 4 tablets
  • 30 servings

Ultra-Pure Calcium by Purity Products lists 4 ingredients, 4 with an amount per serving of 4 tablets, such as 25 mcg (1,000 IU) of vitamin D, 80 mcg of vitamin K2, 500 mg of calcium and 400 mg of magnesium. Its current label entered the NIH Dietary Supplement Label Database on March 25, 2021.

What is in Ultra-Pure Calcium?

Each row as the label prints it, per serving of 4 tablets. 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).

Ultra-Pure Calcium: Supplement Facts rows against the market (DSLD label 244274, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Das CholecalciferolVitamin D (Form: as Cholecalciferol) Note: 1,000 IU25 mcg (1,000 IU)125%Vitamin D in Ultra-Pure Calcium against 14,175 products25 mcg per serving; the middle half of products list 10 mcg to 25 mcg, the median 15 mcg.DV 20 mcgUL 100 mcg25 mcg

Higher than 59% of 14,175 products listing vitamin D (median 15 mcg).

Vitamin K2as Menaquinone-4, Menaquinone-7Vitamin K2 (Form: as Menaquinone-7 (Alt. Name: MK-7), and Menaquinone-4 (Alt. Name: MK-4))80 mcg67%Vitamin K in Ultra-Pure Calcium against 4,607 products80 mcg per serving; the middle half of products list 35 mcg to 100 mcg, the median 80 mcg.DV 120 mcg80 mcg

37% of 4,607 products listing vitamin K give more (median 80 mcg).

Calciumas Eggshell CalciumCalcium (Form: from Egg Shell Calcium)500 mg38%Calcium in Ultra-Pure Calcium against 17,831 products500 mg per serving; the middle half of products list 50 mg to 252 mg, the median 115 mg.DV 1,300 mgUL 2,500 mg500 mg

Higher than 85% of 17,831 products listing calcium (median 115 mg).

Magnesiumas Magnesium OxideMagnesium (Form: as Magnesium Oxide)400 mg95%Magnesium in Ultra-Pure Calcium against 14,003 products400 mg per serving; the middle half of products list 30 mg to 200 mg, the median 86 mg.UL 350 mgDV 420 mg400 mg

Higher than 92% of 14,003 products listing magnesium (median 86 mg). 1.1 times the adult UL a day.

Source: NIH ODS Dietary Supplement Label Database, label 244274 (entered March 25, 2021), 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 1 serving a day, the most its directions give, the label lists 400 mg of magnesium, 1.1 times the adult Tolerable Upper Intake Level.

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: As a dietary supplement, adults take 4 tablets daily with a meal.
Warnings
Contains egg or egg products.
Warning: This product contains vitamin K, which interferes with the prescription drugs Coumadin and Warfarin. Do not take this if taking either of these drugs.
Keep out of reach of children.
Do not use if safety seal is broken.
Storage
Store in a cool, dry place.

Source: label statements in DSLD label 244274.

What else is on the label?

Other ingredients: Microcrystalline Cellulose, Dicalcium Phosphate, Silica, Croscarmellose Sodium, Hypromellose, Stearic Acid, Vegetable Stearate, Titanium Dioxide.

How many labels does Ultra-Pure Calcium have?

One label is on file, entered on March 25, 2021.

  1. Label 244274 (current) Entered March 25, 2021 · on the market · 120 tablets

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

Who makes it?

The label names Purity Products (manufacturer). All Purity Products products.

Where next?