Calcium Hydroxyapatite Concentrate 275 mg by Woodstock Vitamins — Ingredients, Evidence & Safety

🟢 100/100

This product looks safe

No ingredients exceed tolerable upper intake levels
25% of ingredients have research evidence

B Label Compliance Grade

Product Label

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Label Data

1 Capsule(s) Serving Size

60 Servings

Mineral Product Type

25% Evidence Coverage

Supplement Facts — Evidence Check

Calcium

550 mg (55% DV)

Phosphorus

198 mg (20% DV)

✅ Within RDA (0.3× RDA of 700 mg) 📚 12 studies (Tier A: 0, B: 3)

RDA 700mg This product: 198mg UL 4000mg

MCHC

2.2 Gram(s)

Microcrystalline Hydroxyapatite

1.32 Gram(s)

Other Ingredients

HPMC Vegetable Stearic Acid Medium-Chain Triglycerides Microcrystalline Cellulose Vegetable Magnesium Stearate Silica

Label Claims — Verification

❓ Nutrient

❓ All Other

❓ Structure/Function

All Other (99% of products) Structure/Function (85% of products) Nutrient (54% of products) Approved Health (3% of products)

Target Groups

Vegetarian Adult (18 - 50 Years) Gluten Free Dairy Free

Product Information

📋 Directions for Use

Directions: Take one to two capsules up to two times daily, or as directed by your healthcare practitioner.

⚠️ Warnings & Precautions

Consult your healthcare practitioner prior to use.

Individuals taking medication should discuss potential interactions with their healthcare practitioner.

Do not use if tamper seal is damaged.

The labeling on this product does not comply with California’s Proposition 65. Therefore, this product may not be sold in California.

Storage: Keep tightly closed in a cool, dry place out of reach of children.

🧪 Formulation Notes

Calcium Hydroxyapatite Concentrate 275 mg is a well-researched, standardized extract from one of the world’s safest premium sources of bone – free range New Zealand cattle.

Calcium Hydroxyapatite Concentrate 275 mg contains microcrystalline hydroxyapatite concentrate (MCHC), a complex crystalline compound composed primarily of calcium, phosphorus, bioactive growth factors, type l collagen, amino acids, glycosaminoglycans, and a broad range of essential trace elements that naturally comprise healthy bone.

Does not contain: Wheat, gluten, corn, yeast, soy, dairy products, fish, shellfish, peanuts, tree nuts, egg, ingredients derived from genetically modified organisms (GMOs), artificial colors, artificial sweeteners, or artificial preservatives.

Manufactured in a GMP compliant facility.

Vegetarian caps

Additional Information

Storage: Keep tightly closed in a cool, dry place out of reach of children.

Professional use only.

Vegetarian caps

This package is completely recyclable.

Product Details

UPC / SKU 6 69439 85730 4

DSLD Entry Date 2022-04-11

Product Type Mineral

Form Capsule

Brand Woodstock Vitamins

DSLD ID 262999

Data Updated 2026-04-11

Research Evidence

849 Research Sources

56 Avg Quality Score

450 Meta Analysis

152 Rct

137 Systematic Review

73 Clinical Trial

11 Regulatory Source

7 Other

7 Guideline

3 Openfda Safety

2 Cochrane Review

2 Observational

A Phosphate binders for preventing and treating chronic kidney disease-mineral and bone disorder (CKD-MBD)

Meta Analysis The Cochrane database of systematic reviews 2018

PubMed DOI Cochrane

A Calcium supplementation (other than for preventing or treating hypertension) for improving pregnancy and infant outcomes

Meta Analysis The Cochrane database of systematic reviews 2024

PubMed DOI Cochrane

A Calcium supplementation (other than for preventing or treating hypertension) for improving pregnancy and infant outcomes

Meta Analysis The Cochrane database of systematic reviews 2015

PubMed DOI Cochrane

A Vitamin and mineral supplementation for maintaining cognitive function in cognitively healthy people in mid and late life

Meta Analysis The Cochrane database of systematic reviews 2018

PubMed DOI Cochrane

A Calcium supplementation during pregnancy for preventing hypertensive disorders and related problems

Meta Analysis The Cochrane database of systematic reviews 2025

PubMed DOI Cochrane

A Dietary calcium supplementation for preventing colorectal cancer and adenomatous polyps

Systematic Review The Cochrane database of systematic reviews 2008

PubMed DOI Cochrane

A Calcium and vitamin D for increasing bone mineral density in premenopausal women

Systematic Review The Cochrane database of systematic reviews 2023

PubMed DOI Cochrane

A Dietary sodium, sodium-to-potassium ratio, and risk of stroke: A systematic review and nonlinear dose-response meta-analysis

Meta Analysis Clinical nutrition (Edinburgh, Scotland) 2019

PubMed DOI

A The association between circulating magnesium and clinically relevant outcomes in patients with chronic kidney disease: A systematic review and meta-analysis

Meta Analysis Clinical nutrition (Edinburgh, Scotland) 2021

PubMed DOI

A Calcium channel blockers versus other classes of drugs for hypertension

Systematic Review The Cochrane database of systematic reviews 2021

PubMed DOI

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