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Life Extension Vitamin B12 Methylcobalamin 500mcg, Vegetarian Lozenges, Once Daily, 100 Count
Product analysis · Life Extension

Life Extension Vitamin B12 Methylcobalamin 500mcg, Vegetarian Lozenges, Once Daily, 100 Count

Methylcobalamin · Tablet

Why this score?
Testing & evidence
3/25
Ingredient/formulation quality
19/20
Value
16/20
Dose transparency
14/15
Manufacturer transparency
9/10
Label/ingredient transparency
8/10
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
$6.56Amazon
TabletFormat
500 mcgDaily dose
100 tabletsPack size
$0.07Price/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 quality95/100
19 points contributed · weighting 20
Value79/100
16 points contributed · weighting 20
Dose transparency90/100
14 points contributed · weighting 15
Manufacturer transparency85/100
9 points contributed · weighting 10
Label/ingredient transparency78/100
8 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
Amazon listing says: "QUALITY TESTED: Vitamin B12 lozenges are tested in independent laboratories for quality and purity to ensure product standards." I could not independently verify a product-specific third-party lab report or certifying-body registry entry for this exact 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 07:04:01

Dose & value

B12 form
MethylcobalaminTablet
Serving size
1 lozenge
Pack size
100 tablets
Servings per day
1
Price per day
$0.07
Price last checked
2026-09-13 09:21:35

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)
500
B12 / day (micrograms)
500
B12 / serving printed in mg, if stated
Not disclosed
Individual B12 form amounts, if disclosed
Not disclosed
Pack size as labelled
Not disclosed
Recommended serving / frequency
1 lozenge
Comparison basis for a serving range
Not disclosed
Tablets, capsules, sprays, gummies or ml / serving
1
Sublingual use claimed (yes / no / unknown)
yes
Liquid / spray measuring instructions
Not disclosed
Folate included (yes / no / unknown)
no
Folate form, if disclosed
Not disclosed
Folate / serving (micrograms), if disclosed
Not disclosed
Other B vitamins / serving
Not disclosed
Additional active ingredients
Mannitol, sorbitol, microcrystalline, cellulose, vegetable stearate, croscarmellose sodium, natural strawberry flavor
Sugars / sweeteners
Vitamin B12 (as cyanocobalamin) Amt Per Serving:500 mcg % Daily Value :8,333%,,Other Ingredients: Mannitol, sorbitol, microcrystalline, cellulose, vegetable stearate, croscarmellose sodium, natural strawberry flavor.
Flavour
Strawberry
Allergen statement
Amazon allergen information: Gluten Free; Quick-dissolving B12 lozenges – Getting your vitamin B12 has never been easier: our vitamin B12 supplement delivers 500 mcg of methylcobalamin in every gluten-free, vegetarian lozenge.; The majority of our products are non-GMO, gluten-free and manufactured in the USA—and a Certificate of Analysis is available for every one.; Vitamin B12 Methylcobalamin contains 100 gluten-free, vegetarian lozenges, enough for a 100-day supply.
Vegan / vegetarian label status
Amazon dietary claim: Vegetarian; Quick-dissolving B12 lozenges – Getting your vitamin B12 has never been easier: our vitamin B12 supplement delivers 500 mcg of methylcobalamin in every gluten-free, vegetarian lozenge.; Vitamin B12 Methylcobalamin contains 100 gluten-free, vegetarian lozenges, enough for a 100-day supply.

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

Excipients
Not disclosed — check the current label
Allergens
Amazon allergen information: Gluten Free; Quick-dissolving B12 lozenges – Getting your vitamin B12 has never been easier: our vitamin B12 supplement delivers 500 mcg of methylcobalamin in every gluten-free, vegetarian lozenge.; The majority of our products are non-GMO, gluten-free and manufactured in the USA—and a Certificate of Analysis is available for every one.; Vitamin B12 Methylcobalamin contains 100 gluten-free, vegetarian lozenges, enough for a 100-day supply.
Carrier / source
Not disclosed — check the current label
Other active ingredients
Mannitol, sorbitol, microcrystalline, cellulose, vegetable stearate, croscarmellose sodium, natural strawberry flavor

Manufacturer transparency

Brand
Life Extension
Legal company
Quality Supplements and Vitamins, Inc. (d/b/a Life Extension)
Manufacturing model
Not conclusively disclosed (mixed in-house/third-party)
Manufacturing location
United States (New Jersey facility referenced)

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 Vitamin B12 1,000 mcg, Active Methylcobalamin, 60 Capsules

Why this score?
Testing & evidence
21/25
Ingredient/formulation quality
17/20
Value
2/20
Dose transparency
14/15
Manufacturer transparency
9/10
Label/ingredient transparency
8/10
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
Thorne product page states: "It is third-party tested for purity and quality" and NSF Certified for Sport registry confirms "Thorne® Vitamin B12" with product form Capsule, package size 60, serving size 1 capsule, and lot numbers 416646 / 416645 / 416898.
Laboratory
Not recorded
Certification body
NSF Certified for Sport
Batch
Not recorded
Batch-specific report
Not established in this record
Report date
Not recorded
Evidence checked
2026-09-14 07:06:00
$0.40per day
$24.00per pack
View AnalysisBuy Nowon Amazon
Compare alternative

Igennus Sublingual Vitamin B12 Complex 1000mcg, 180 Tablets – Methylcobalamin, Adenosylcobalamin, Hydroxocobalamin

Why this score?
Testing & evidence
21/25
Ingredient/formulation quality
10/20
Value
11/20
Dose transparency
14/15
Manufacturer transparency
7/10
Label/ingredient transparency
7/10
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
2026-09-13 20:13:02
$0.11per day
$19.95per pack
View AnalysisBuy Nowon Amazon
Compare alternative

NOW Supplements, Methyl B-12 1000 mcg, 100 Lozenges

Why this score?
Testing & evidence
3/25
Ingredient/formulation quality
19/20
Value
15/20
Dose transparency
14/15
Manufacturer transparency
6/10
Label/ingredient transparency
8/10
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
NOW Foods article title found on its own site: "NOW’s Testing of Methyl B-12 Brands on Amazon". This is a general testing-related claim/article, but I did not independently verify any third-party test/certification 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 07:02:04
$0.07per day
$6.84per pack
View AnalysisBuy Nowon Amazon