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Pure Encapsulations Calcium 450mg – Capsules
Product analysis · Pure Encapsulations

Pure Encapsulations Calcium 450mg – Capsules

Mixed forms · Capsule

Why this score?
Testing & evidence
9/20
Ingredient/formulation quality
23/25
Value
11/20
Dose transparency
11/15
Manufacturer transparency
6/10
Label/ingredient transparency
10/10
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Testing transparency: 9/20
$33.50Amazon
CapsuleFormat
Daily dose not confirmedDaily dose
180 capsulesPack size
$0.56Price/day
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We may earn a commission from qualifying purchases. This never affects our scores.

The score, explained

Our scoring methodology
Testing & evidence45/100
9 points contributed · weighting 20
Ingredient/formulation quality90.7/100
23 points contributed · weighting 25
Value54/100
11 points contributed · weighting 20
Dose transparency73.6/100
11 points contributed · weighting 15
Manufacturer transparency55/100
6 points contributed · weighting 10
Label/ingredient transparency97/100
10 points contributed · weighting 10

The score compares product data, not medical effectiveness or individual suitability. Prime and affiliate commission contribute no points.

Testing & evidence

Testing claimed

Evidence status
Testing claimed
Manufacturer statement
Pure Encapsulations’ Quality Assurance page says: “All raw materials and finished products are independently tested for purity and potency by our third-party laboratories.”
Laboratory
Not recorded
Certification body
Not recorded
Batch
Not recorded
Batch-specific report
Not established in this record
Report date
Not recorded
Evidence checked
2026-09-27 15:53:47

Dose & value

Calcium form
Mixed formsCalcium + DCapsuleCalcium citrate/malate
Daily dose
450–900 mgWithin recommended rangeTypical: 300–1,000 mg/day
Serving size
3 capsules
Pack size
180 capsules
Servings per day
Not disclosed
Price per day
$0.56
Price last checked
2026-09-26 17:04:08

Daily cost uses the recorded label serving; a larger dose earns no value advantage. The label serving is not a recommendation for your personal intake.

Calcium formulation details

Comparison form
Mixed forms
Calcium compound as labelled
Calcium citrate/malate
Vitamin D per serving (mcg)
10
Magnesium per serving (mg)
Not disclosed
Standardisation / purity as labelled
Not disclosed
Named ingredient
Not disclosed
Elemental calcium per serving as labelled
450 mg per serving
Serving as labelled
3 capsules
Daily amount (mg, single direction only)
Not disclosed
Other active ingredients
Vitamin D3 10 mcg (400 IU)
Pack size as labelled
180 capsules
Recommended serving / frequency
Take 3 capsules, 1-2 times daily, with meals
Allergen statement
Not disclosed
Vegan / vegetarian label status
Not disclosed

Ingredients & suitability

Excipients
Not disclosed — check the current label
Allergens
Not disclosed
Carrier / source
Not disclosed — check the current label
Other active ingredients
Vitamin D3 10 mcg (400 IU)

Manufacturer transparency

Brand
Pure Encapsulations
Legal company
Pure Encapsulations, LLC
Manufacturing model
In-house
Manufacturing location
United States (Sudbury, MA)

View the full brand profile →

What the record makes clear

  • Active amount is disclosed.
  • Daily cost can be calculated from the recorded serving.

What to keep in mind

  • Verify the current label and the batch covered by any testing report.
  • A product score cannot determine whether you need a supplement.

Explore the alternatives

Compare alternative

Thorne Calcium 250mg – Capsules

Why this score?
Testing & evidence
20/20
Ingredient/formulation quality
23/25
Value
12/20
Dose transparency
15/15
Manufacturer transparency
9/10
Label/ingredient transparency
10/10
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Testing evidence
Evidence status
Recognised certification
Manufacturer statement
NSF registry page lists 'Thorne® Calcium' under NSF/ANSI Standard 173 Dietary Supplements, with finished product entries for 'Thorne® Calcium' at two facilities. Thorne’s own page also states: 'This product has been third-party tested and certified to verify what's in the package matches what's on the label and to confirm it contains no unsafe levels of contaminants...'
Laboratory
Not recorded
Certification body
NSF International
Batch
Not recorded
Batch-specific report
Not established in this record
Report date
Not recorded
Evidence checked
2026-09-27 16:02:28
$0.47per day
$28.00per pack
View AnalysisBuy Nowon Amazon
Compare alternative

Jarrow Formulas BoneUp 1000mg – Capsules

Why this score?
Testing & evidence
20/20
Ingredient/formulation quality
23/25
Value
10/20
Dose transparency
15/15
Manufacturer transparency
6/10
Label/ingredient transparency
10/10
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Testing evidence
Evidence status
Recognised certification
Manufacturer statement
Nutrasource registry page for Ultra BoneUp® states: "IGEN™ Certified" and "This product has PASSED because it does not contain detectable amounts of genetically engineered GMO proteins and genes included in the IGEN™ testing panel."
Laboratory
Not recorded
Certification body
Nutrasource
Batch
Not recorded
Batch-specific report
Not established in this record
Report date
Not recorded
Evidence checked
2026-09-27 15:54:41
$0.58per day
$23.24per pack
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Compare alternative

21st Century Calcium 600mg – Tablets

Why this score?
Testing & evidence
9/20
Ingredient/formulation quality
23/25
Value
20/20
Dose transparency
11/15
Manufacturer transparency
9/10
Label/ingredient transparency
10/10
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Testing evidence
Evidence status
Testing claimed
Manufacturer statement
Manufacturer site says: “For over 30 years, 21st Century Vitamins has provided trusted vitamins and supplements… From sourcing the finest ingredients to rigorous testing and production processes, we ensure that every product meets our stringent quality benchmarks.” It also lists “ISO/IEC 17025:2017 Certified Lab” and “USP standards for heavy metals,” but I did not find an independently verifiable product-specific COA or registry entry for this calcium product.
Laboratory
Not recorded
Certification body
Not recorded
Batch
Not recorded
Batch-specific report
Not established in this record
Report date
Not recorded
Evidence checked
2026-09-27 16:03:38
$0.03per day
$11.99per pack
View AnalysisBuy Nowon Amazon