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WeightWorld Vitamin B12 1000µg
Product analysis · WeightWorld

WeightWorld Vitamin B12 1000µg

Methylcobalamin · Tablet

Why this score?
Testing & evidence
3/25
Ingredient/formulation quality
15/20
Value
20/20
Dose transparency
12/15
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
£8.49Amazon
TabletFormat
1,000 mcgDaily dose
450 tabletsPack size
£0.02Price/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 & evidence12.8/100
3 points contributed · weighting 25
Ingredient/formulation quality75/100
15 points contributed · weighting 20
Value100/100
20 points contributed · weighting 20
Dose transparency80/100
12 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
WeightWorld’s own product page says the tablets are “Backed by our 90-day money-back guarantee” and the brand’s separate “Third-Party Tested Supplements” page says “we send our supplements to accredited third-party laboratories to verify purity and quality” and that “A wide range of our wellness supplements undergo third-party testing to screen for heavy metals.” However, I did not find an independently verifiable COA/lab report or a certifying-body registry entry for this specific Vitamin B12 1000µg 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 10:25:09

Dose & value

B12 form
MethylcobalaminTablet
Serving size
1 tablet daily with a meal
Pack size
450 tablets
Servings per day
1
Price per day
£0.02
Price last checked
2026-09-12 13:23:24

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 B12 formulation details

B12 comparison type
Methylcobalamin
Disclosed B12 forms (separate with +)
Methylcobalamin
B12 / serving (micrograms)
1000
B12 / day (micrograms)
1000
B12 / serving printed in mg, if stated
Not disclosed
Label NRV / serving (%), if stated
40000
Individual B12 form amounts, if disclosed
Not applicable; single disclosed form
Pack size as labelled
450 tablets
Recommended serving / frequency
1 tablet daily with a meal
Comparison basis for a serving range
Not disclosed
Tablets, capsules, sprays, gummies or ml / serving
1
Sublingual use claimed (yes / no / unknown)
unknown
Liquid / spray measuring instructions
Not applicable
Folate included (yes / no / unknown)
no
Folate form, if disclosed
Not applicable
Folate / serving (micrograms), if disclosed
Not disclosed
Other B vitamins / serving
None separately listed
Additional active ingredients
None separately listed
Sugars / sweeteners
None listed
Flavour
Unflavoured
Allergen statement
Gluten-free claim
Vegan / vegetarian label status
Vegan claim on listing

Product sources & research notes

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

Ingredients & suitability

Vegan Vegetarian

Excipients
Vitamin B12 (as Methylcobalamin), Bulking Agents: Microcrystalline Cellulose, Dicalcium Phosphate, Anti-Caking Agents: Rice Extract Blend and Silicon Dioxide.
Allergens
Gluten-free claim
Carrier / source
Not disclosed — check the current label
Other active ingredients
None separately listed

Manufacturer transparency

Brand
WeightWorld
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

Igennus Super B12 Complex 1000µg

Why this score?
Testing & evidence
21/25
Ingredient/formulation quality
15/20
Value
13/20
Dose transparency
12/15
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
IGEN™ / Nutrasource
Batch
Not recorded
Batch-specific report
Not established in this record
Report date
Not recorded
Evidence checked
2026-09-14 10:16:49
£0.08per day
£14.44per pack
View AnalysisBuy Nowon Amazon
Compare alternative

Igennus Super B12 Complex Spray 5000µg

Why this score?
Testing & evidence
21/25
Ingredient/formulation quality
15/20
Value
2/20
Dose transparency
12/15
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 for Igennus Super B12 Complex: "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 10:10:19
£0.38per day
£16.99per pack
View AnalysisBuy Nowon Amazon
Compare alternative

Health4All Cyanocobalamin B12 50µg

Why this score?
Testing & evidence
3/25
Ingredient/formulation quality
15/20
Value
16/20
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
Amazon listing image includes a self-asserted badge reading "LAB TESTED" for the product, but I did not find any independently verifiable COA, lab report, or certifying-body registry entry for this exact Health4All B12 Cyanocobalamin 50mcg 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 10:03:48
£0.06per day
£9.99per pack
View AnalysisBuy Nowon Amazon