Product Image

Methyl B-12 1000 mcg Lemon Flavor

Jarrow Formulas
4.8
★ ★ ★ ★ ★
(24465 ratings)
Vitamin B12 1000 mcg
Product Image
Score87
A clear, bioactive B12 chewable with strong potency and practical serving value. Benefits are most meaningful when low B12 status is present.
How scoring works
Quantity:100 Tablet(s) • (100 servings)
Goals:
Energy
General Health
Productivity Boost
Hair Health

Score 87

A clear, bioactive B12 chewable with strong potency and practical serving value. Benefits are most meaningful when low B12 status is present.
How scoring works

Also available as

2 options
500.00mcg • 100 Tablet(s) servings • Cherry Flavor 500.00mcg • 100 Tablet(s) • 100 servings $6.99 ($0.06 per serving) 2500.00mcg • 100 Tablet(s) servings • Tropical Flavor 2500.00mcg • 100 Tablet(s) • 100 servings $15.03 ($0.15 per serving)
$8.00($0.08 per serving)
Pure Formulas
$ 8.99
Vitacost
$ 11.73
Daily Vita
$ 9.99
Vitacost
$ 11.57
Daily Vita
$ 8.00
iHerb
$ 11.92
iHerb
$ 11.92
Report prices

Analysis

The 1,000 mcg methylcobalamin serving supports normal red blood cell formation, nerve function, and energy metabolism. Its value is greatest when B12 intake or absorption is inadequate.

Methylcobalamin is a bioactive form and the single-ingredient design is easy to assess. The lemon chewable may be convenient, but the supplied label does not establish sublingual use or enhanced absorption.

The formula fits users seeking a dedicated B12 supplement without unrelated actives. It is not a stimulant and is unlikely to improve energy, productivity, or hair when B12 status is already adequate.

Who is it for
  • Adults with increased B12 needs
  • People preferring chewable tablets
  • Users seeking a single-ingredient methylcobalamin product
Best for
  • B12 intake support
  • Normal energy metabolism
  • Nerve and red blood cell support

Pros

  • Bioactive methylcobalamin
  • Clearly disclosed amount
  • Convenient chewable format
  • Long serving supply

Cons

  • No stated sublingual delivery
  • Single-nutrient coverage
  • Amount exceeds routine needs for many users
  • No direct stimulant effect

Warnings

  • The 1,000 mcg amount is designed for high-potency supplementation and may be unnecessary for routine maintenance.
  • Energy benefits are most likely when B12 status is low; it should not be expected to act like a stimulant.
  • The chewable format does not by itself establish improved absorption for people with significant absorption disorders.

Nutrient quality

89 Highest impact

Methylcobalamin is a direct, well-regarded form of vitamin B12. Vitamin B12 has low known toxicity and the listed amount raises no clear safety limit issue.

.

Ingredient transparency

88 Highest impact

A specific amount is supplied for every listed active ingredient. No proprietary blend hides the active doses.

.

Customer satisfaction

72 High impact

The supplied aggregate rating is very strong. No complaint themes or purpose-specific experience details are supplied.

.

Value for money

96 Highest impact

The simple formula and favorable qualitative positioning support strong value. The single-active formula contains no obvious low-value active extras.

.
Report analysis

Goals

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

Methylcobalamin supports B12-dependent energy metabolism, nerve function, and red blood cell formation. The 1000 mcg amount provides high-potency support through a chewable tablet.

Benefits are most relevant when intake or absorption is inadequate rather than as an acute stimulant. The single nutrient offers strong depth for B12 needs but does not address alertness or stress resilience.

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 · 1000 mcg

Methylcobalamin supplies a bioactive form of vitamin B12 at 1000 mcg. B12 supports red blood cell formation, nervous-system maintenance, and energy metabolism when intake or absorption is inadequate.

The single-active design is clear and provides useful depth for people with increased B12 needs. The chewable format may be convenient, but no sublingual delivery claim establishes an absorption advantage.

Study evidence
Vitamin B12 Adverse 66 studies
Productivity Boost
Productivity Boost
Impact
High effect
C+ Goal FitA+ Strength of SupportD+ CoverageA+ Formula Quality
Vitamin B12 · 1000 mcgVitamin B12 · 1000 mcg

Methylcobalamin at 1000 mcg can restore energy and concentration when vitamin B12 status is low. It is unlikely to increase productivity in users who already have adequate B12 status.

The active form is well defined and supplied at a high supplemental amount. The single-nutrient design is transparent but addresses only deficiency-related energy metabolism.

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

1,000 mcg of methylcobalamin may support hair when vitamin B12 deficiency contributes to shedding. Vitamin B12 has little reason to improve hair growth when status is already adequate.

Methylcobalamin is bioactive and clearly disclosed, while the chewable format offers convenient standard delivery. The single nutrient does not address structural, mineral, hormonal, or scalp-circulation pathways.

Study evidence
Vitamin B12 Disputed 17 studies

Ingredients

IngredientAmount per serving
Vitamin B12 (Methylcobalamin)
 1000 mcg
Gluten Free Adults 18–50 Vegan Dairy Free Vegetarian
Report overview
Vitamin B12 (Methylcobalamin) · 1000 mcg OverallScore95
A- Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA+ Value

Bioactive methylcobalamin is delivered at a high-potency dose with clear label disclosure. The chewable tablet may be convenient, but the supplied label does not establish sublingual use or unusually optimized absorption. Cost efficiency is excellent for the amount of active B12 provided.

View ingredientView products
Loading alternative details
94 Performance

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

Jarrow Formulas
<p>Methylcobalamin, methyl folate, and active B6 provide related support for energy and methylation pathways. Compared with the original simple 1000 mcg methylcobalamin formula, the companion nutrients are purposeful and clearly dosed rather than being an opaque or unrelated blend.</p>
91 Performance

B12 Energizer+ Natural Cherry Flavor

Advanced Nutrition by Zahler
<p>A bioactive B12 form and substantial serving provide focused support for higher intake needs. The simple formula is easy to assess alongside the original simple 1000 mcg methylcobalamin formula, though the amount may exceed routine maintenance needs.</p>
90 Performance

B12 2500 mcg Red Cherry

EZ Melts
<p>Fast-melting methylcobalamin provides a bioactive form and delivery suited to use in the mouth. Compared with the original simple 1000 mcg methylcobalamin formula, clear high-dose disclosure and convenient delivery strengthen practical absorption-oriented use.</p>
94 Budget

Quick Dissolve B-12 Methylcobalamin 2500 mcg

Nature's Bounty
<p>No supplied candidate undercuts the original simple 1000 mcg methylcobalamin formula on serving cost, but this is among the closest economical options available. Quick-dissolve methylcobalamin supplies a bioactive form and substantial amount, though the amount may exceed routine maintenance needs.</p>
91 Budget

Vitamin B12 2000 mcg

Nutricost
<p>Serving cost is lower than the original simple 1000 mcg methylcobalamin formula, while the active B12 amount remains meaningful. A simple methylcobalamin formula provides a substantial amount, while people with adequate B12 status may gain little from routine high-dose use.</p>
93 Budget

B12 Methylcobalamin 1000 mcg

Natural Factors
<p>No supplied candidate undercuts the original simple 1000 mcg methylcobalamin formula on serving cost, but this is among the closest economical options available. Methylcobalamin provides a bioactive form at a meaningful amount without unrelated nutrient extras, though inactive ingredients and full directions are missing.</p>
91 Value

Sublingual Methylcobalamin 1000 mcg

Solgar
<p>Sublingual methylcobalamin combines a bioactive B12 form, mouth-based delivery, and strong serving value. Compared with the original simple 1000 mcg methylcobalamin formula, the focused amount is practical for higher intake needs without using unrelated extras.</p>
92 Value

Fully Active B12 1500 mcg

Doctor's Best
<p>A simple methylcobalamin formula provides a substantial amount with excellent serving value. Compared with the original simple 1000 mcg methylcobalamin formula, it is easier to assess, although people with adequate B12 status may gain little from routine supplementation.</p>
91 Value

Methyl B-12 Natural Cherry Flavor

ZHOU
<p>A bioactive B12 form and substantial serving combine high nutrient quality with excellent practical value. The focused design is straightforward beside the original simple 1000 mcg methylcobalamin formula, though the amount may exceed maintenance needs.</p>
Report alternatives

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. 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
  3. 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
  4. The association of betaine, homocysteine and related metabolites with cognitive function in Dutch elderly people.
    Eussen SJ; Ueland PM; Clarke R; Blom HJ; Hoefnagels WH; van Staveren WA; de Groot LC · The British journal of nutrition · 2007
    Randomized trial195 participantsProductivity Boost forVitamin B12
  5. 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
  6. 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
  7. 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
  8. 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
  9. 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
  10. Vitamin B12 Deficiency: Common Questions and Answers.
    Patel H; McGuirk R · American family physician · 2025
    Narrative reviewEnergy forVitamin B12
  11. 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
  12. 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
  13. 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
  14. 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
  15. 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
  16. 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
  17. 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
  18. 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
  19. 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
  20. 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
  21. 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
  22. 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
  23. 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
  24. 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
  25. 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
  26. 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
  27. 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