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Viridian Vitamin D3 1000 IU + K2
Product analysis · Viridian

Viridian Vitamin D3 1000 IU + K2

D3 + K2 · Capsule

Why this score?
Testing & evidence
3/25
Ingredient/formulation quality
15/20
Value
0/20
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 transparency: 3/25
£31.85Amazon
CapsuleFormat
1,000 IU / 25 µgDaily dose
90 capsulesPack size
£0.35Price/day
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The score, explained

Our scoring methodology
Testing & evidence12.8/100
3 points contributed · weighting 25
Ingredient/formulation quality75/100
15 points contributed · weighting 20
Value0/100
0 points contributed · weighting 20
Dose transparency95/100
14 points contributed · weighting 15
Manufacturer transparency60/100
6 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

Testing claimed

Evidence status
Testing claimed
Manufacturer statement
Manufacturer product page states: "Vegan, clinically trialled vitamin D3" and "non-animal tested vitamin K2"; homepage also says "130 Purity Checks" and "Independently BRC certified to the highest AA grade" / "verified by the Soil Association" for some products, but I did not find an independently verifiable certification or COA for this specific 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
2026-09-14 11:19:03

Dose & value

Vitamin form
D3 + K2CapsuleMK-7 · 45µg/day
Daily dose
1,000 IU25µgAbove UK routine amount1-capsule basis
Serving size
1 capsule
Pack size
90 capsules
Servings per day
1
Price per day
£0.35
Price last checked
2026-09-11 17:44:30

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.

Vitamin D formulation details

Comparison type (D2 / D3 / D3 + K2)
D3 + K2
Vitamin form (D2 / D3)
D3
IU / serving
1000
Micrograms / serving
25
IU / day
1000
Micrograms / day
25
Micrograms printed on label
25
D3 source, where disclosed
Lichen
Vegan D3 (yes / no / unknown / not applicable)
yes
K2 included (yes / no / unknown)
yes
K2 form
MK-7
K2 / serving (micrograms)
45
Carrier oil, where disclosed
Not disclosed
Pack size as labelled
90 capsules
Recommended serving / frequency
1–2 capsules daily with food; comparison uses 1
Comparison basis for a label serving range
1-capsule basis
Additional active ingredients
Alfalfa base (amount not disclosed)
Allergen statement
Not disclosed; check current pack
Vegan / vegetarian label status
Vegan and vegetarian

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 directions permit 1–2 capsules daily. Comparison uses one: D3 1,000 IU / 25µg and K2 45µg. Two double the nutrient amounts and daily cost. Alfalfa base has no declared amount.

Ingredients & suitability

Vegan Vegetarian

Excipients
One Capsule Provides: Vitamin D3 1000iu (Cholecalciferol) 25µg NRV 500, Vitamin K2 (Menaquinone-7) 45µg NRV 60, In a base of Alfalfa, Plant cellulose capsule
Allergens
Not disclosed; check current pack
Carrier / source
Not disclosed
Other active ingredients
Alfalfa base (amount not disclosed)

Manufacturer transparency

Brand
Viridian
Legal company
Viridian International Limited
Manufacturing model
Not conclusively disclosed (UK-made)
Manufacturing location
United Kingdom

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 Vitamin D3 4000 IU

Why this score?
Testing & evidence
22/25
Ingredient/formulation quality
15/20
Value
17/20
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
Attached to test report no. 26C22329 ... TESTING COMPLIANCE CERTIFICATE ... Sample description: WEIGHTWORLD VITAMIN D3 40001U 400 TABLETS - BATCH CODE: 429462 ... The analyzed sample is compliant ... Vitamin D3 100 μg/tablet ...
Laboratory
Neotron Spa
Certification body
Not recorded
Batch
429462
Batch-specific report
Recorded
Report date
Not recorded
Evidence checked
2026-09-14 11:22:54
£0.02per day
£8.99per pack
View AnalysisBuy Nowon Amazon
Compare alternative

Igennus Vegan Vitamin D3 1000 IU

Why this score?
Testing & evidence
21/25
Ingredient/formulation quality
15/20
Value
11/20
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
Recognised certification
Manufacturer statement
Nutrasource registry page 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 IGEN™
Batch
Not recorded
Batch-specific report
Not established in this record
Report date
Not recorded
Evidence checked
2026-09-14 11:33:24
£0.05per day
£19.99per pack
View AnalysisBuy Nowon Amazon
Compare alternative

Nutravita Vitamin D3 1000 IU Drops

Why this score?
Testing & evidence
3/25
Ingredient/formulation quality
15/20
Value
20/20
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
Testing claimed
Manufacturer statement
Nutravita’s product page says "Laboratory tested products"; the Ingredients page says ingredients go through "strict testing" and that "the testing is done in-house at the manufacturing site." I did not find any independently verifiable third-party lab report or certification for this specific product, and the only registry result I found was NSF listings for other brands/products, not Nutravita Vitamin D3 Drops.
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 11:27:53
£0.01per day
£12.99per pack
View AnalysisBuy Nowon Amazon