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Sublingual Methylcobalamin (Vitamon B12) 5000 mcg

Solgar
4.8
★ ★ ★ ★ ★
(3424 ratings)
Vitamin B12 5000 mcg
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Score80
Solgar Sublingual Methylcobalamin 30-count is best for high-dose sublingual methylcobalamin in a small bottle; the amount is far beyond basic daily maintenance.
How scoring works
Quantity:30 nugget(s) • (30 servings)
Goals:
Energy
General Health
Productivity Boost
Hair Health

Score 80

Solgar Sublingual Methylcobalamin 30-count is best for high-dose sublingual methylcobalamin in a small bottle; the amount is far beyond basic daily maintenance.
How scoring works

Also available as

1 option
60 servings 1 nugget(s) • 60 nugget(s) • 60 servings $13.49 ($0.22 per serving)
$10.65($0.35 per serving)
Pure Formulas
$ 11.84
iHerb
$ 11.19
Vitacost
$ 10.65
Daily Vita
$ 13.03
Amazon
$ 13.95
Report prices

Analysis

The clearest strength is a transparent 5,000 mcg B12 serving. Methylcobalamin offers active-form support, while the sublingual nugget may be easier to use for people who prefer oral dissolution.

Bioactive form quality and oral dissolution make it a strong targeted B12 option, while the smaller bottle has a higher per-serving cost than the 60-count version. Value is good, which should be weighed against lower-cost products with similar potency.

B12 can support normal energy metabolism, red blood cell formation, and nerve function, especially when intake or status is low. The high dose is more appropriate for selected higher-need use than ordinary maintenance.

Who is it for
  • High-dose sublingual methylcobalamin in a small bottle
  • Adults with low dietary B12 intake
  • Users whose dose needs match the label potency
Best for
  • Correcting inadequate B12 intake
  • Normal energy metabolism when B12 status is low
  • Shoppers who prefer an active B12 form

Pros

  • Clearly discloses 5,000 mcg of B12
  • Sublingual nugget is easy to understand
  • Value is good
  • Uses methylcobalamin rather than cyanocobalamin alone

Cons

  • The amount is far beyond basic daily maintenance.
  • Dose is far above routine maintenance needs
  • Flavoring and inactive-ingredient details are not supplied
  • Full intake directions and excipient details are not provided

Warnings

  • The 5,000 mcg amount is better matched to a documented higher need than routine maintenance.
  • Cobalamin contains cobalt and should be avoided by anyone with a known cobalt allergy.
  • High-dose B12 can cause acne-like skin reactions in some people; stop and reassess if a new rash appears.

Nutrient quality

79 High impact

An active methylcobalamin form and an extremely large dose provide a focused supplement. The exceptionally large amount is unnecessary for most routine users.

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Ingredient transparency

82 Highest impact

Active amounts are generally clear and no proprietary blend obscures the formula. Full usage directions and non-active ingredients are not supplied, with any noted form ambiguity reducing clarity.

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Customer satisfaction

72 High impact

Aggregate satisfaction is very strong and supported by an extensive evidence base. No firsthand experience details are supplied, so recurring complaints and purpose alignment cannot be checked.

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Value for money

86 Highest impact

The focused formula provides reasonable value for users who prefer this form and dose. Dose intensity and form choice determine whether the category position is worthwhile.

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Report analysis

Goals

Energy
Energy
Impact
Highest effect
A Goal FitA+ Strength of SupportC+ CoverageA+ Formula Quality
Vitamin B12 · 5000 mcg

Methylcobalamin supports B12-dependent energy metabolism, nerve function, and red blood cell formation. Its main benefit is likely for people with low B12 status rather than those seeking immediate stimulation.

The 5,000 mcg amount is far above basic maintenance needs but may suit selected higher-need users. A sublingual format, bioactive form, and exact dose disclosure provide strong practical quality.

Study evidence
Vitamin B12 Disputed 14 studies
General Health
General Health
Impact
Highest effect
A+ Goal FitA- Strength of SupportC+ CoverageA+ Formula Quality
Vitamin B12 · 5000 mcg

Vitamin B12 supports energy metabolism, nerve maintenance, and healthy red blood cell formation. Methylcobalamin is a bioactive form, while the 5,000 mcg sublingual amount is aimed more at high needs than routine maintenance.

The formula provides strong depth for B12 but does not cover other foundational nutrient gaps. Its single active form and oral-dissolving delivery are coherent and fully disclosed.

Study evidence
Vitamin B12 Adverse 66 studies
Productivity Boost
Productivity Boost
Impact
High effect
B- Goal FitA Strength of SupportC- CoverageA+ Formula Quality
Vitamin B12 · 5000 mcgVitamin B12 · 5000 mcg

High-dose methylcobalamin supports neurological energy metabolism and may reduce mental fatigue when vitamin B12 status is low. The sublingual format and bioactive form provide strong delivery and form quality.

The 5,000 mcg amount is far beyond ordinary maintenance needs and is unlikely to sharpen focus when B12 status is already adequate. A single vitamin also does not provide acute alertness, stress resistance, or broader neurotransmitter support.

Study evidence
Vitamin B12 Supportive 15 studies
Vitamin B12 No effect 17 studies
Hair Health
Hair Health
Impact
High effect
D- Goal FitA+ Strength of SupportD- CoverageA+ Formula Quality

Methylcobalamin at 5000 mcg may help hair only when vitamin B12 deficiency is contributing to poor growth or anemia. Direct evidence for improving hair in B12-sufficient users is weak.

The amount is ample for supplementation and the active form is disclosed. The narrow single-vitamin approach does not address structural proteins, iron status, or follicle pathways.

Study evidence
Vitamin B12 Disputed 17 studies

Ingredients

IngredientAmount per serving
Vitamin B12 (Methylcobalamin)
 5000 mcg
Gluten Free Adults 18–50 Vegan Kosher Dairy Free Sugar Free Vegetarian
Report overview
Vitamin B12 (Methylcobalamin) · 5000 mcg OverallScore100
A+ Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA+ Value

The bioactive methylcobalamin form and sublingual format are well aligned with B12 use. The 5,000 mcg amount supports people with higher needs, although it is far above basic maintenance. 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
The more focused formula provides 1,000 mcg of vitamin B12 as Methylcobalamin, plus 1.5 mg of Vitamin B6 and 680 mcg DFE of Folate. Compared with the original, it provides a smaller vitamin B12 amount with similarly explicit form information.
86 Performance

Methyl B-12 Natural Cherry Flavor

ZHOU
The more focused formula provides 5,000 mcg of vitamin B12 as Methylcobalamin. Compared with the original, it provides a similar vitamin B12 amount with similarly explicit form information.
87 Performance

B12 Energizer+ Natural Cherry Flavor

Advanced Nutrition by Zahler
The more focused formula provides 5,000 mcg of vitamin B12 as Methylcobalamin. Compared with the original, it provides a similar vitamin B12 amount with similarly explicit form information.
86 Budget

Quick Dissolve B-12 Methylcobalamin 2500 mcg

Nature's Bounty
The lower serving cost still provides 2,500 mcg of vitamin B12 as Methylcobalamin. Compared with the original, it provides a smaller vitamin B12 amount with similarly explicit form information.
87 Budget

Chewable Fully Active B12 Chocolate Mint Flavor 1000 mcg

Doctor's Best
The lower serving cost still provides 1,000 mcg of vitamin B12 as Methylcobalamin. Compared with the original, it provides a smaller vitamin B12 amount with similarly explicit form information.
87 Budget

B12 Methylcobalamin 1000 mcg

Natural Factors
The lower serving cost still provides 1,000 mcg of vitamin B12 as Methylcobalamin. Compared with the original, it provides a smaller vitamin B12 amount with similarly explicit form information.
86 Value

Vitamin B12 2000 mcg

Nutricost
The favorable serving cost pairs 2,000 mcg of vitamin B12 as Methylcobalamin with a simple ingredient profile. Compared with the original, it provides a smaller vitamin B12 amount with similarly explicit form information.
87 Value

Fully Active B12 1500 mcg

Doctor's Best
The favorable serving cost pairs 1,500 mcg of vitamin B12 as Methylcobalamin with a simple ingredient profile. Compared with the original, it provides a smaller vitamin B12 amount with similarly explicit form information.
85 Value

Vegan B12 2500 mcg

DEVA
The favorable serving cost pairs 2,500 mcg of vitamin B12 as Methylcobalamin with a simple ingredient profile. Compared with the original, it provides a smaller vitamin B12 amount with similarly explicit form information.
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. 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
  5. 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
  6. Vitamin B12 Deficiency: Common Questions and Answers.
    Patel H; McGuirk R · American family physician · 2025
    Narrative reviewEnergy forVitamin B12
  7. 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
  8. 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
  9. 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
  10. 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
  11. 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
  12. 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
  13. 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
  14. 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
  15. 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
  16. 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
  17. 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
  18. 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
  19. 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
  20. 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
  21. 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
  22. 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
  23. 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
  24. 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
  25. 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