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B12 Methylcobalamin 10000 mcg Cherry Flavor

Natural Factors
4.7
★ ★ ★ ★ ★
(647 ratings)
Vitamin B12 10000 mcg
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Score76
An active-form B12 chewable with an extreme 10,000 mcg amount. It should be reserved for a clearly defined high-dose need.
How scoring works
Quantity:30 Tablet(s) • (30 servings)
Goals:
Energy
General Health
Productivity Boost
Hair Health

Score 76

An active-form B12 chewable with an extreme 10,000 mcg amount. It should be reserved for a clearly defined high-dose need.
How scoring works

Also available as

2 options
1000.00mcg • 180 servings 1000.00mcg • 180 Tablet(s) • 180 servings $17.47 ($0.09 per serving) 1000.00mcg • 90 servings 1000.00mcg • 90 Tablet(s) • 90 servings $10.47 ($0.11 per serving)
$13.27($0.44 per serving)
Amazon
$ 13.27
iHerb
$ 13.27
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Analysis

Methylcobalamin supplies B12 in a directly usable form for normal nerve and blood-cell functions. The 10,000 mcg amount is exceptionally large even among high-dose oral B12 products.

A cherry-flavored tablet can be convenient for people who dislike swallowing capsules. Inactive sweetener and flavor details are not included in the supplied data.

The product is better suited to a defined high-dose schedule than routine daily maintenance. More B12 is unlikely to provide extra energy when status is already sufficient.

Who is it for
  • Adults following a specific high-dose B12 plan
  • People who prefer chewable methylcobalamin
  • Users with a documented B12 need
Best for
  • Targeted B12 repletion
  • Intermittent high-dose schedules
  • Supporting normal nerve function when B12 is low

Pros

  • Active methylcobalamin form
  • Clearly disclosed amount
  • Convenient chewable format

Cons

  • Extremely high dose
  • Only 30 servings
  • Flavoring details are not supplied

Warnings

  • The 10,000 mcg amount is far beyond routine nutritional needs and should be matched to a documented deficiency or professional dosing plan.

Nutrient quality

81 Highest impact

A well-regarded vitamin form supports good ingredient quality. An unusually large amount or mismatched additions reduce balance for general use.

Ingredient transparency

85 Highest impact

Active amounts are clearly disclosed and no proprietary blend is shown. Inactive ingredients and full daily-use directions are missing from the supplied data.

Customer satisfaction

70 High impact

The average rating is strong and supported by a large evidence base. No specific feedback is supplied to judge repeated complaints or whether experience matches the intended use.

Value for money

65 High impact

The supply provides weak cost efficiency for the active amount. A focused formula avoids unnecessary nutrient extras.

Report analysis

Goals

Energy
Energy
Impact
Highest effect
A- Goal FitA- Strength of SupportC- CoverageA Formula Quality
Vitamin B12 · 10000 mcg

Vitamin B12 supports normal red-blood-cell formation and cellular energy metabolism. The substantial serving is most relevant for users with low intake, impaired absorption, or deficiency.

Methylcobalamin is a preferred bioactive B12 form with complete label disclosure. People with adequate B12 status should not expect more energy from the exceptionally high amount.

Study evidence
Vitamin B12 Disputed 14 studies
General Health
General Health
Impact
High effect
A- Goal FitB Strength of SupportD+ CoverageA- Formula Quality
Vitamin B12 · 10000 mcg

Methylcobalamin provides a bioactive B12 form for blood formation, nerve function, and cellular energy metabolism. Label disclosure is complete, and the chewable format is practical.

The 10,000 mcg amount is exceptionally concentrated and far beyond ordinary daily requirements. Such a large serving is better matched to a specific high-need plan than routine general wellness.

Study evidence
Vitamin B12 Adverse 66 studies
Productivity Boost
Productivity Boost
Impact
High effect
C+ Goal FitB Strength of SupportF CoverageB+ Formula Quality
Vitamin B12 · 10000 mcgVitamin B12 · 10000 mcg

The 10,000 mcg serving of vitamin B12 may support energy metabolism and mental clarity when low B12 status contributes to fatigue. People with adequate B12 status should not expect a direct stimulant-like productivity effect.

Methylcobalamin is clearly named, allowing the active form to be judged. The very high amount adds little expected productivity benefit beyond correcting deficiency.

Study evidence
Vitamin B12 Supportive 15 studies
Vitamin B12 No effect 17 studies
Hair Health
Hair Health
Impact
Moderate effect
F Goal FitB- Strength of SupportF CoverageB+ Formula Quality

Vitamin B12 may support hair health when a deficiency disrupts normal cell turnover, but it is not a direct hair-growth active. People with adequate B12 status are unlikely to gain a meaningful hair benefit.

Methylcobalamin and the 10,000 mcg amount are clearly disclosed. The single-nutrient formula does not support structural protein, hormonal, or scalp pathways.

Study evidence
Vitamin B12 Disputed 17 studies

Ingredients

IngredientAmount per serving
Vitamin B12 (Methylcobalamin)
 10000 mcg
Gluten Free Adults 18–50 Vegan Dairy Free Sugar Free Vegetarian
Report overview
Vitamin B12 (Methylcobalamin) · 10000 mcg OverallScore95
A- Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA+ Value

Methylcobalamin and complete label disclosure support strong ingredient quality. The 10,000 mcg serving is exceptionally concentrated and may be more than many routine users need, despite meeting the stated potency threshold. Cost efficiency per active amount is excellent.

View ingredientView products
Loading alternative details
89 Performance

Methyl B-12 1000 mcg & Methyl Folate 400 mcg plus P-5-P Lemon Flavor

Jarrow Formulas
<p>Methylcobalamin, folate, and active vitamin B6 support linked energy and methylation pathways with clearly stated amounts. Compared with the original 10,000 mcg serving, the lower 1,000 mcg amount is less aggressive while retaining methylcobalamin.</p>
87 Performance

Fully Active B12 1500 mcg

Doctor's Best
<p>1,500 mcg of bioactive methylcobalamin provides a focused, easy-to-assess vitamin B12 option. Compared with the original 10,000 mcg serving, the lower 1,500 mcg amount is less aggressive while retaining methylcobalamin.</p>
87 Performance

B12 Energizer+ Natural Cherry Flavor

Advanced Nutrition by Zahler
<p>5,000 mcg of bioactive methylcobalamin provides a focused, easy-to-assess vitamin B12 option. Compared with the original 10,000 mcg serving, the lower 5,000 mcg amount is less aggressive while retaining methylcobalamin.</p>
86 Budget

Vitamin B12 2000 mcg

Nutricost
<p>A lower serving cost provides 2,000 mcg of methylcobalamin in a clearly disclosed formula. Compared with the original 10,000 mcg serving, the lower 2,000 mcg amount is less aggressive while retaining methylcobalamin.</p>
86 Budget

Quick Dissolve B-12 Methylcobalamin 2500 mcg

Nature's Bounty
<p>A lower serving cost provides 2,500 mcg of methylcobalamin in a clearly disclosed formula. Compared with the original 10,000 mcg serving, the lower 2,500 mcg amount is less aggressive while retaining methylcobalamin.</p>
87 Budget

B12 Methylcobalamin 1000 mcg

Natural Factors
<p>A lower serving cost provides 1,000 mcg of methylcobalamin in a clearly disclosed formula. Compared with the original 10,000 mcg serving, the lower 1,000 mcg amount is less aggressive while retaining methylcobalamin.</p>
87 Value

Chewable Fully Active B12 Chocolate Mint Flavor 1000 mcg

Doctor's Best
<p>1,000 mcg of methylcobalamin supplies a bioactive form without low-value nutrient extras. The favorable serving cost strengthens value, and compared with the original 10,000 mcg serving, the lower 1,000 mcg amount is less aggressive while retaining methylcobalamin.</p>
85 Value

Vegan B12 2500 mcg

DEVA
<p>2,500 mcg of methylcobalamin supplies a bioactive form without low-value nutrient extras. The favorable serving cost strengthens value, and compared with the original 10,000 mcg serving, the lower 2,500 mcg amount is less aggressive while retaining methylcobalamin.</p>
83 Value

Sublingual Methylcobalamin 1000 mcg

Solgar
<p>1,000 mcg of methylcobalamin supplies a bioactive form without low-value nutrient extras. The favorable serving cost strengthens value, and compared with the original 10,000 mcg serving, the lower 1,000 mcg amount is less aggressive while retaining methylcobalamin.</p>
Report alternatives

Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. Effects of Vitamin B12 Supplementation on Cognitive Function, Depressive Symptoms, and Fatigue: A Systematic Review, Meta-Analysis, and Meta-Regression.
    Markun S; Gravestock I; Jäger L; Rosemann T; Pichierri G; Burgstaller JM · Nutrients · 2021
    Meta-analysis6,276 participants16 studies pooledEnergy forVitamin B12
  2. Cobalamin deficiency: clinical picture and radiological findings.
    Briani C; Dalla Torre C; Citton V; Manara R; Pompanin S; Binotto G; Adami F · Nutrients · 2014
    Narrative reviewEnergy forVitamin B12
  3. Vitamin B12 Supplementation: Is More Always Better?
    Yepes-Calderón M; Doorenbos CSE; Stegmann ME; Touw DJ; Harmsen HJM; Heiner-Fokkema MR; van Spronsen FJ; Corpeleijn E; Bakker SJL · Nutrients · 2026
    Narrative reviewEnergy forVitamin B12
  4. Association of Vitamin B12, Vitamin D, and Thyroid-Stimulating Hormone With Fatigue and Neurologic Symptoms in Patients With Fibromyalgia.
    Munipalli B; Strothers S; Rivera F; Malavet P; Mitri G; Abu Dabrh AM; Dawson NL · Mayo Clinic proceedings. Innovations, quality & outcomes · 2022
    Observational study2,142 participantsEnergy forVitamin B12
  5. A new perspective on vitamin B12 deficiency in rheumatology: a case-based review.
    Dułak NA; Rytlewska M; Jaskólska M; Chmielewski M · Rheumatology international · 2024
    Case series3 participantsEnergy forVitamin B12
  6. Patients' experiences with methylcobalamin injections in amyotrophic lateral sclerosis.
    Zubair AS; Saab L; Scharer K; Khokhar B · Brain circulation · 2024
    Qualitative study5 participantsEnergy forVitamin B12
  7. Vitamin B12 Deficiency: Common Questions and Answers.
    Patel H; McGuirk R · American family physician · 2025
    Narrative reviewEnergy forVitamin B12
  8. Oral Vitamin B12 versus Placebo for the Prevention of Chemotherapy-Induced Peripheral Neuropathy in Gynecological Cancer Patients: A Randomized, Double-Blind, Placebo-Controlled Trial.
    Insin P; Chaiwongsa T; Prueksaritanond N · Asian Pacific journal of cancer prevention : APJCP · 2026
    Randomized trial40 participantsGeneral Health forVitamin B12
  9. Vitamin B12 Supplementation in Diabetic Neuropathy: A 1-Year, Randomized, Double-Blind, Placebo-Controlled Trial.
    Didangelos T; Karlafti E; Kotzakioulafi E; Margariti E; Giannoulaki P; Batanis G; Tesfaye S; Kantartzis K · Nutrients · 2021
    Randomized trial90 participantsGeneral Health forVitamin B12
  10. A single-center randomized controlled trial of local methylcobalamin injection for subacute herpetic neuralgia.
    Xu G; Lv ZW; Feng Y; Tang WZ; Xu GX · Pain medicine (Malden, Mass.) · 2014
    Randomized trial98 participantsGeneral Health forVitamin B12
  11. Local Injection of Methylcobalamin Combined with Lidocaine for Acute Herpetic Neuralgia.
    Xǔ G; Xu S; Tang WZ; Xú G; Cheng C; Xu J · Pain medicine (Malden, Mass.) · 2017
    Randomized trial204 participantsGeneral Health forVitamin B12
  12. The Effect of Vitamin B12 and Folic Acid Supplementation on Serum Homocysteine, Anemia Status and Quality of Life of Patients with Multiple Sclerosis.
    Nozari E; Ghavamzadeh S; Razazian N · Clinical nutrition research · 2022
    Clinical trial50 participantsGeneral Health forVitamin B12
  13. Quantitative Analysis of Selected Circulating Hematological Biomarkers, Essential Minerals, Vitamins, and Thyroid Hormones in Females Affected by Hair Loss.
    Al-Fawaeir S; Al-Odat I · Diseases (Basel, Switzerland) · 2025
    Case-control study200 participantsHair Health forVitamin B12
  14. Factors Associated with Premature Hair Graying in a Young Indian Population.
    Chakrabarty S; Krishnappa PG; Gowda DG; Hiremath J · International journal of trichology · 2016
    Case-control study74 participantsHair Health forVitamin B12
  15. Risk Factors for Pediatric Alopecia Areata: Clinical and Biochemical Findings from a Case - Control Study.
    İritaş SY · Dermatology practical & conceptual · 2026
    Case-control study600 participantsHair Health forVitamin B12
  16. Hair Loss After Laparoscopic Sleeve Gastrectomy.
    Katsogridaki G; Tzovaras G; Sioka E; Perivoliotis K; Zachari E; Magouliotis D; Tasiopoulou V; Chatedaki C; Zacharoulis D · Obesity surgery · 2019
    Cohort study50 participantsHair Health forVitamin B12
  17. Demographic Characteristics and Association of Serum Vitamin B12, Ferritin and Thyroid Function with Premature Canities in Indian Patients from an Urban Skin Clinic of North India: A Retrospective Analysis of 71 Cases.
    Sonthalia S; Priya A; Tobin DJ · Indian journal of dermatology · 2022
    Cross-sectional study71 participantsHair Health forVitamin B12
  18. Effects of Folic Acid and Vitamin B12, Alone and in Combination on Cognitive Function and Inflammatory Factors in the Elderly with Mild Cognitive Impairment: A Single-blind Experimental Design.
    Ma F; Zhou X; Li Q; Zhao J; Song A; An P; Du Y; Xu W; Huang G · Current Alzheimer research · 2020
    Randomized trial240 participantsProductivity Boost forVitamin B12
  19. Effects of Physical Activity and Micronutrients on Cognitive Performance in Children Aged 6 to 11 Years: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.
    Meli AM; Ali A; Mhd Jalil AM; Mohd Yusof H; Tan MMC · Medicina (Kaunas, Lithuania) · 2022
    Meta-analysisProductivity Boost forVitamin B12
  20. Cognitive function in an elderly population: interaction between vitamin B12 status, depression, and apolipoprotein E ε4: the Hordaland Homocysteine Study.
    Vogiatzoglou A; Smith AD; Nurk E; Drevon CA; Ueland PM; Vollset SE; Nygaard HA; Engedal K; Tell GS; Refsum H · Psychosomatic medicine · 2013
    Cross-sectional study1,935 participantsProductivity Boost forVitamin B12
  21. Cognitive profile and inflammatory markers in children and adolescents with specific learning disorder: a cross-sectional study.
    Balatacı U; Ay B · Frontiers in pediatrics · 2026
    Case-control study108 participantsProductivity Boost forVitamin B12
  22. Association between vitamin B12 levels and cognitive impairment in older adults.
    Aguilar-Navarro SG; Carbajal-Silva JC; Palacios-Hernández MGI; Gutiérrez-Gutierrez LA; Ávila-Funes JA; Mimenza-Alvarado AJ · Gaceta medica de Mexico · 2023
    Cross-sectional study241 participantsProductivity Boost forVitamin B12
  23. Effects of vitamin B12 on performance and circadian rhythm in normal subjects.
    Mayer G; Kröger M; Meier-Ewert K · Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 1997
    Randomized trial20 participantsProductivity Boost forVitamin B12
  24. Prenatal vitamin B12 status and cognitive functioning in children at 4 years of age: The ECLIPSES Study.
    Cruz-Rodríguez J; Canals-Sans J; Hernández-Martínez C; Voltas-Moreso N; Arija V · Maternal & child nutrition · 2023
    Cohort study249 participantsProductivity Boost forVitamin B12
  25. Dietary intakes and biomarker patterns of folate, vitamin B6, and vitamin B12 can be associated with cognitive impairment by hypermethylation of redox-related genes NUDT15 and TXNRD1.
    An Y; Feng L; Zhang X; Wang Y; Wang Y; Tao L; Qin Z; Xiao R · Clinical epigenetics · 2020
    Cohort study2,533 participantsProductivity Boost forVitamin B12
  26. Homocysteine, folate, and vitamins B6 and B12 blood levels in relation to cognitive performance: the Maine-Syracuse study.
    Elias MF; Robbins MA; Budge MM; Elias PK; Brennan SL; Johnston C; Nagy Z; Bates CJ · Psychosomatic medicine · 2008
    Cross-sectional study812 participantsProductivity Boost forVitamin B12