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Viridian High Potency Magnesium
Product analysis · Viridian

Viridian High Potency Magnesium

Blend: oxide, citrate, bisglycinate · Capsule

Why this score?
Testing & evidence
0/25
Ingredient/formulation quality
13/20
Value
4/20
Dose transparency
14/15
Manufacturer transparency
3/10
Label/ingredient transparency
9/10
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Testing transparency: 0/25
£11.55Amazon
CapsuleFormat
300 mgDaily dose
30 capsulesPack size
£0.39Price/day
Buy Now on Amazon Compare alternatives

We may earn a commission from qualifying purchases. This never affects our scores.

The score, explained

Our scoring methodology
Testing & evidence0/100
0 points contributed · weighting 25
Ingredient/formulation quality65/100
13 points contributed · weighting 20
Value18/100
4 points contributed · weighting 20
Dose transparency95/100
14 points contributed · weighting 15
Manufacturer transparency30/100
3 points contributed · weighting 10
Label/ingredient transparency85/100
9 points contributed · weighting 10

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

Testing & evidence

No public evidence located

Evidence status
No public evidence located
Manufacturer statement
Viridian’s own site says the product has "130 purity checks" and the product page says "I Trust Viridian Supplements because I see what goes into them - 130 purity checks, no junk, and formulas rooted in real research"; the brand also says "Our 130 Point Promise" includes a "Purity" checklist and that a reference sample of every batch is kept for its complete shelf life.
Laboratory
Not recorded
Certification body
Not recorded
Batch
Not recorded
Batch-specific report
Not established in this record
Report date
Not recorded
Evidence checked
2026-09-14 17:34:26

Dose & value

Daily dose
300 mgelemental magnesiumWithin commonly studied range
Serving size
1 capsule
Pack size
30 capsules
Servings per day
1
Price per day
£0.39
Price last checked
2026-09-11 07:11:49

Daily cost follows the label serving. The value score uses the category’s documented comparison method. The label serving is not a recommendation for your personal intake.

Magnesium formulation details

Magnesium form
Blend: oxide, citrate, bisglycinate
Compound mass / serving (mg)
Not disclosed
Elemental magnesium / serving (mg)
300
Elemental magnesium / day (mg)
300
Capsules or tablets / day
1
Additional active ingredients
Not disclosed

Product sources & research notes

Listing and manufacturer details describe the label; they do not independently verify product claims. Check the current pack before use.

Manufacturer permits 1–2 capsules. Comparison uses one capsule (300 mg); two provide 600 mg and double daily cost.

Ingredients & suitability

Vegan Vegetarian

Excipients
Magnesium (as Oxide, Citrate, Bisglycinate), Vegetable Cellulose (HPMC*) Capsule. *hypromellose.
Allergens
Not disclosed — check the current label
Carrier / source
Not disclosed — check the current label
Other active ingredients
Not disclosed — check the current label

Manufacturer transparency

Brand
Viridian
Legal company
Not recorded
Manufacturing model
Not recorded
Manufacturing location
Not recorded

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

WeightWorld Magnesium Glycinate + B6

Why this score?
Testing & evidence
21/25
Ingredient/formulation quality
15/20
Value
8/20
Dose transparency
14/15
Manufacturer transparency
6/10
Label/ingredient transparency
9/10
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
Verified independent evidence
Manufacturer statement
WeightWorld UK product page says “Third-party lab tested — View Certificate”; the certificate for WEIGHTWORLD MAGNESIUM GLYCINATE 1422 mg 180 CAPSULES - BATCH CODE: 0429825 is a Testing Compliance Certificate attached to test report no. 26C22334 from Neotron Spa, and it states the sample is compliant with contaminant limits and nutrient tolerances.
Laboratory
Neotron Spa
Certification body
Not recorded
Batch
0429825
Batch-specific report
Recorded
Report date
Not recorded
Evidence checked
2026-09-14 17:23:35
£0.11per day
£9.95per pack
View AnalysisBuy Nowon Amazon
Compare alternative

WeightWorld Magnesium 4-in-1

Why this score?
Testing & evidence
14/25
Ingredient/formulation quality
13/20
Value
17/20
Dose transparency
14/15
Manufacturer transparency
3/10
Label/ingredient transparency
9/10
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
Manufacturer COA
Manufacturer statement
WeightWorld product page says the supplement is "Third-Party Tested" and the page includes a PDF titled "WEIGHTWORLD_MAGNESIUM_GLYCINATE_1422_mg_180_CAPSULES_-_BATCH_CODE_0429825-TCC.pdf". The PDF itself is a "TESTING COMPLIANCE CERTIFICATE" for "WEIGHTWORLD MAGNESIUM GLYCINATE 1422 mg 180 CAPSULES - BATCH CODE: 0429825" and reports microbiology and contaminant testing plus magnesium/vitamin B6 tolerance checks.
Laboratory
Not recorded
Certification body
Not recorded
Batch
0429825
Batch-specific report
Recorded
Report date
Not recorded
Evidence checked
2026-09-14 17:44:37
£0.15per day
£13.49per pack
View AnalysisBuy Nowon Amazon
Compare alternative

Lindens Magnesium 500 mg Oxide

Why this score?
Testing & evidence
0/25
Ingredient/formulation quality
15/20
Value
19/20
Dose transparency
14/15
Manufacturer transparency
6/10
Label/ingredient transparency
9/10
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
No public evidence located
Manufacturer statement
Not recorded
Laboratory
Not recorded
Certification body
Not recorded
Batch
Not recorded
Batch-specific report
Not established in this record
Report date
Not recorded
Evidence checked
2026-09-14 17:47:36
£0.07per day
£6.59per pack
View AnalysisBuy Nowon Amazon