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Sublingual Methylcobalamin 1000 mcg

Solgar
4.8
★ ★ ★ ★ ★
(15005 ratings)
Vitamin B12 1000 mcg
Product Image
Score85
A well-designed dissolving methylcobalamin product for targeted B12 support. Its amount is more than many maintenance users need.
How scoring works
Quantity:60 nugget(s) • (60 servings)
Goals:
General Health
Energy
Productivity Boost
Hair Health

Score 85

A well-designed dissolving methylcobalamin product for targeted B12 support. Its amount is more than many maintenance users need.
How scoring works
$8.10($0.13 per serving)
Vitacost
$ 8.73
iHerb
$ 8.10
Vitacost
$ 8.73
Daily Vita
$ 9.50
Amazon
$ 17.24
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Analysis

The 1,000 mcg serving provides meaningful methylcobalamin for normal nerve, energy, and blood-cell pathways. Single-ingredient design makes the active form and amount easy to verify.

Oral dissolution may suit people who dislike capsules and may reduce reliance on ordinary swallowed-pill delivery. No unrelated actives distract from the intended purpose.

The 60-serving supply supports practical ongoing use. People looking for general stimulation or hair growth without a B12 shortfall may see limited relevance.

Who is it for
  • Adults with increased B12 needs
  • People preferring oral-dissolving supplements
  • Users wanting a simple high-potency formula
Best for
  • Targeted B12 intake
  • Supporting normal energy metabolism
  • Pill-free supplementation

Pros

  • Bioactive methylcobalamin
  • Substantial amount
  • Dissolving format
  • Clear single-active label

Cons

  • Potentially excessive for maintenance
  • Does not address other causes of fatigue
  • No companion folate
  • Complete excipients are unavailable

Warnings

  • The high amount may be unnecessary when B12 status is already adequate
  • Use the nugget according to oral-dissolving directions
  • Ongoing fatigue or neurologic symptoms need evaluation beyond self-supplementation

Nutrient quality

95 Highest impact

A preferred bioactive B12 form closely fits the intended use. The amount is meaningful, although its suitability depends on whether routine or higher intake is needed.

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Ingredient transparency

84 Highest impact

Active names and amounts are clearly stated, with no hidden proprietary dose. Complete intake directions and a full inactive-ingredient list are not included in the supplied data.

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Customer satisfaction

73 High impact

Supplied satisfaction metrics indicate a strong result with a meaningful response pool. Detailed experience themes are absent, so recurring complaints and real-world purpose fit remain uncertain.

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Value for money

86 Highest impact

Serving value appears favorable relative to the disclosed form and amount. The focused formula avoids low-value extras.

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Report analysis

Goals

General Health
Impact
Highest effect
A Goal FitA+ Strength of SupportC CoverageA+ Formula Quality
Vitamin B12 · 1000 mcg

Methylcobalamin provides bioactive vitamin B12 for red blood cells, nerve function, and cellular energy. The 1,000 mcg sublingual serving is substantial and clearly disclosed.

The product is narrow and most useful when intake or absorption makes extra B12 relevant. Its focused, transparent design avoids unnecessary ingredients while delivering strong pathway depth.

Study evidence
Vitamin B12 Adverse 66 studies
Energy
Impact
Highest effect
A Goal FitA Strength of SupportC- CoverageA+ Formula Quality
Vitamin B12 · 1000 mcg

Vitamin B12 is foundational for nerve function, red blood cell formation, and cellular energy metabolism. Methylcobalamin is a bioactive form, and the substantial amount supports targeted use when intake or absorption is inadequate.

The sublingual format offers convenient oral dissolution, though many users can also absorb high-dose oral B12. The focused formula does not address other nutrient gaps but has no major design weakness.

Study evidence
Vitamin B12 Disputed 14 studies
Productivity Boost
Impact
Highest effect
B- Goal FitA+ Strength of SupportC- CoverageA+ Formula Quality
Vitamin B12 · 1000 mcgVitamin B12 · 1000 mcg

Bioactive vitamin B12 may support mental energy and concentration when low B12 contributes to fatigue or brain fog. It is foundational support rather than a direct nootropic or stimulant for people whose B12 status is already adequate.

The 1000 mcg amount is substantial and the dissolving methylcobalamin form is clearly disclosed. Its focused design provides strong depth in one energy-related pathway but does not address alertness, stress resilience, or several cognitive mechanisms.

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

B12 may support hair when deficiency disrupts red blood cell supply to follicles, but it is not a direct structural hair nutrient. Deficiency correction is well supported, while added growth in B12-replete users is uncertain.

The 1,000 mcg amount is substantial for nutritional repletion. The single-ingredient design is coherent for targeted B12 support.

Study evidence
Vitamin B12 Disputed 17 studies

Ingredients

IngredientAmount per serving
Vitamin B12 (Methylcobalamin)
1000 mcg
Gluten Free Adults 18–50 Vegan Kosher Dairy Free Sugar Free Vegetarian
Report overview
A+ Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyB+ Value

Methylcobalamin provides a bioactive B12 form at a substantial dose. The sublingual nugget may suit people who prefer oral dissolution rather than a swallowed capsule. Its efficient active delivery also offers good value.

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Sources

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

  1. 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
  2. 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
  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. Megaloblastic anaemia: prevalence and causative factors.
    Khanduri U; Sharma A · The National medical journal of India · 2008
    Observational study175 participantsEnergy forVitamin B12
  6. 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
  7. 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
  8. Dermatological findings of vitamin B12 deficiency and resolving time of these symptoms.
    Demir N; Doğan M; Koç A; Kaba S; Bulan K; Ozkol HU; Doğan SZ · Cutaneous and ocular toxicology · 2014
    Single-arm trial57 participantsHair Health forVitamin B12
  9. 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
  10. Micronutrient Deficiencies and Digital Computerized Phototrichogram Analysis in Telogen Effluvium: a Retrospective Correlation Study in a Tertiary Medical Center.
    Arslan H; Gündüz Ö · Dermatology practical & conceptual · 2023
    Observational study973 participantsHair Health forVitamin B12
  11. A comprehensive investigation of biochemical status in patients with telogen effluvium: Analysis of Hb, ferritin, vitamin B12, vitamin D, thyroid function tests, zinc, copper, biotin, and selenium levels.
    Durusu Turkoglu IN; Turkoglu AK; Soylu S; Gencer G; Duman R · Journal of cosmetic dermatology · 2024
    Case-control study180 participantsHair Health forVitamin B12
  12. Micronutrient levels and thyroid functions in scarring alopecias: Do they play a role in disease pathogenesis?
    Gönülal Bak R; Çetin C; Kılınç F; Akbaş A; Aksoy Saraç G · Cutaneous and ocular toxicology · 2025
    Case-control study136 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. 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
  15. Vitamin B12 Deficiency: Common Questions and Answers.
    Patel H; McGuirk R · American family physician · 2025
    Narrative reviewEnergy forVitamin B12
  16. 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
  17. 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
  18. 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
  19. 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
  20. 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
  21. 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
  22. 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
  23. 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
  24. 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
  25. 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
  26. 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
  27. 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
  28. 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
  29. 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
  30. 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
  31. 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