PlainVitamins

Calcium Hydroxyapatite Caps

by NOW · capsule · 120 capsules

  • On the market (NIH)
  • UPC 7 33739 01253 1
  • DSLD label 335217
  • Serving 2 capsules
  • 60 servings

Calcium Hydroxyapatite Caps by NOW lists 4 ingredients, 4 with an amount per serving of 2 capsules, such as 500 mg of calcium and 200 mg of phosphorus. Its current label entered the NIH Dietary Supplement Label Database on June 25, 2025.

What is in Calcium Hydroxyapatite Caps?

Each row as the label prints it, per serving of 2 capsules. 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 Hydroxyapatite Caps: Supplement Facts rows against the market (DSLD label 335217, January 2026 release)
IngredientAmount% DVAmong products listing it
Calciumelemental500 mg38%Calcium in Calcium Hydroxyapatite Caps 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). Per day at the most servings: 1,000 mg.

Microcrystalline HydroxyapatiteBSE-free2,273 mg
Phosphoruselemental200 mg16%Phosphorus in Calcium Hydroxyapatite Caps against 3,786 products200 mg per serving; the middle half of products list 45 mg to 200 mg, the median 90 mg.DV 1,250 mgUL 4,000 mg200 mg

Higher than 75% of 3,786 products listing phosphorus (median 90 mg). Per day at the most servings: 400 mg.

Microcrystalline HydroxyapatiteBSE-free2,273 mg

Source: NIH ODS Dietary Supplement Label Database, label 335217 (entered June 25, 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?

Every amount on this label with a position sits within the middle 80% of the products that list the same ingredient.

The NIH database records 2 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
Suggested usage: Take 2 capsules twice daily with food.
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 yeast, wheat, gluten, soy, corn, 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
NOW Calcium Hydroxyapatite is processed from Australian, certified BSE-free, young pasture-fed cattle.
Non-GMO
Not manufactured with yeast, wheat, gluten, soy, corn, milk, egg, fish, shellfish, tree nut or sesame ingredients.
MCHA = Microcrystalline Hydroxyapatite (BSE-free)
Storage
Store in a cool, dry place after opening.

Source: label statements in DSLD label 335217.

What else is on the label?

Other ingredients: Bovine Gelatin, Magnesium Stearate.

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

How many labels does Calcium Hydroxyapatite Caps have?

6 labels are on file under this name since May 23, 2014: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 335217 (current) Entered June 25, 2025 · on the market · 120 capsules · UPC 7 33739 01253 1
  2. Label 313647 Entered May 23, 2024 · off the market January 21, 2025 · 120 capsules · UPC 7 33739 01253 1
  3. Label 244800 Entered April 22, 2021 · off the market February 12, 2024 · 120 capsules · UPC 7 33739 01253 1
  4. Label 53462 Entered November 24, 2015 · off the market August 17, 2023 · 120 capsules · UPC 7 33739 01253 1
  5. Label 51586 Entered October 22, 2015 · off the market October 23, 2015 · 120 capsules · UPC 7 33739 01253 1
  6. Label 33466 Entered May 23, 2014 · off the market September 30, 2015 · 120 capsules · UPC 7 33739 01253 1

DSLD also links this label to: Calcium Hydroxyapatite Caps 250 mg (image difference, same product).

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?