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

Jarrow Formulas
4.8
★ ★ ★ ★ ★
(48192 ratings)
Vitamin B12 1000 mcg
Product Image
Score89
Methylcobalamin, active folate, and P-5-P create a coherent trio of bioactive B vitamins. The B12 and folate amounts may be more than a maintenance user needs, so the formula should replace rather than stack with similar B-complex products.
How scoring works
Quantity:100 Tablet(s) • (100 servings)
Goals:
Energy
General Health
Productivity Boost
Hair Health

Score 89

Methylcobalamin, active folate, and P-5-P create a coherent trio of bioactive B vitamins. The B12 and folate amounts may be more than a maintenance user needs, so the formula should replace rather than stack with similar B-complex products.
How scoring works
$9.40($0.09 per serving)
Vitacost
$ 17.79
iHerb
$ 18.34
Daily Vita
$ 14.99
Amazon
$ 13.99
Pure Formulas
$ 13.99
iHerb
$ 18.34
Walmart
$ 20.40
Daily Vita
$ 9.40
Vitacost
$ 15.49
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Analysis

1,000 mcg of methylcobalamin provides focused B12 support, especially when intake or absorption is low. Methylcobalamin, active folate, and P-5-P create a coherent trio of bioactive B vitamins.

The formula's main trade-off is dose, form, or delivery rather than missing breadth. The B12 and folate amounts may be more than a maintenance user needs, so the formula should replace rather than stack with similar B-complex products.

It fits users who need coordinated active B12, folate, and B6 support at a convenient serving cost. B12 is unlikely to create an energy boost when status is already adequate.

Who is it for
  • users who need coordinated active B12, folate, and B6 support at a convenient serving cost
  • People with low dietary B12 intake or impaired absorption
Best for
  • lemon tablet with methylfolate and P-5-P
  • Defined B12 supplementation needs

Pros

  • Uses methylcobalamin
  • Pairs B12 with active folate and P-5-P
  • Convenient one-tablet serving

Cons

  • Easy to duplicate with B-complex products
  • High B12 amount may be unnecessary
  • Not suitable for users seeking B12 alone

Warnings

  • The folate amount should be counted with fortified foods and other supplements to avoid unnecessary stacking.
  • High-dose B12 can occasionally trigger acne-like skin reactions in susceptible users.
  • Tell the clinician ordering blood work about the B-vitamin formula because supplementation can materially change measured nutrient status.

Nutrient quality

95 Highest impact

The ingredient form and serving amount provide solid nutritional support. The formula remains reasonably focused without obvious excessive dosing.

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Ingredient transparency

89 Highest impact

Active amounts and ingredient names are mostly easy to assess. A complete inactive-ingredient list and full use directions are not included in the supplied facts.

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Customer satisfaction

73 High impact

The aggregate rating is very strong supported by substantial review volume. No specific feedback is supplied to confirm recurring complaints or purpose-related experiences.

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Value for money

98 Highest impact

The formula and supply provide strong practical value. Most of the cost appears directed toward the core active formula.

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Report analysis

Goals

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

Methylcobalamin directly supports B12-dependent metabolism, nerve function, and red blood cell formation, especially when B12 status is low. The 1,000 mcg amount exceeds the stated energy threshold and uses a bioactive form.

Methyl folate and pyridoxal 5-phosphate add complementary coenzyme support without turning the formula into an unfocused blend. People with adequate B12 status should not expect the stimulant-like lift associated with caffeine because the benefit mainly comes from correcting a nutrient limitation.

Study evidence
Vitamin B12 Disputed 14 studies
General Health
General Health
Impact
Highest effect
A Goal FitA+ Strength of SupportB CoverageA+ Formula Quality
Folate · 680 mcg DFEVitamin B12 · 1000 mcg

Methylcobalamin, folate, and active vitamin B6 form a coherent combination for normal methylation, red blood cell formation, nerve function, and energy metabolism. The B12 amount is high potency, while the folate and B6 amounts provide useful complementary support.

The formula covers a focused set of related B-vitamin pathways rather than the full range of general-health needs. Precise amounts and active forms strengthen confidence in its use for people with a relevant B-vitamin gap.

Study evidence
Folate Supportive 80 studies
Vitamin B12 Adverse 66 studies
Productivity Boost
Productivity Boost
Impact
Highest effect
B- Goal FitA+ Strength of SupportC+ CoverageA+ Formula Quality
Vitamin B12 · 1000 mcgVitamin B12 · 1000 mcgVitamin B6 · 1.5 mg

Methylcobalamin, methylfolate, and active B6 support energy metabolism and neurotransmitter synthesis, especially when intake or absorption is inadequate. They are foundational rather than acute cognitive enhancers for people with adequate status.

All three nutrients use favorable forms and are clearly disclosed. The streamlined combination offers strong methylation depth without alertness or stress-resilience coverage.

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

Vitamin B12 may support hair when deficiency disrupts normal cell turnover, but it is not a direct hair-growth active. Adequately nourished users are unlikely to gain a meaningful hair benefit.

Methylcobalamin and the substantial B12 amount are clearly disclosed. The formula does not address structural protein, hormonal, or scalp pathways.

Study evidence
Vitamin B12 Disputed 17 studies

Ingredients

IngredientAmount per serving
Vitamin B6 (Pyridoxal 5-Phosphate)
 1.5 mg
Folate
680 mcg DFE
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

Methylcobalamin provides a bioactive B12 form at a high-potency amount. The chewable tablet is convenient but is not identified as a mucosal delivery system. Cost efficiency is excellent for the active amount.

View ingredientView products
Loading alternative details
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 methylcobalamin, methyl folate, and active B6 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 methylcobalamin, methyl folate, and active B6 formula, clear high-dose disclosure and convenient delivery strengthen practical absorption-oriented use.</p>
91 Performance

Vitamin B12 5000 mcg

Global Healing
<p>Adenosylcobalamin, hydroxocobalamin, and methylcobalamin provide broader active-form coverage than the original methylcobalamin, methyl folate, and active B6 formula. The listed amounts may be additive or a combined total, and full directions and inactive ingredients are missing.</p>
94 Budget

Quick Dissolve B-12 Methylcobalamin 2500 mcg

Nature's Bounty
<p>Serving cost is lower than the original methylcobalamin, methyl folate, and active B6 formula, while the active B12 amount remains meaningful. 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 methylcobalamin, methyl folate, and active B6 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 methylcobalamin, methyl folate, and active B6 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 methylcobalamin, methyl folate, and active B6 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 methylcobalamin, methyl folate, and active B6 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 methylcobalamin, methyl folate, and active B6 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. 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. Intakes of Folate, Vitamin B6, and Vitamin B12 in Relation to All-Cause and Cause-Specific Mortality: A National Population-Based Cohort.
    Bo Y; Xu H; Zhang H; Zhang J; Wan Z; Zhao X; Yu Z · Nutrients · 2022
    Cohort study55,569 participantsGeneral Health forFolate
  9. The responsiveness of plasma homocysteine to small increases in dietary folic acid: a primary care study.
    Schorah CJ; Devitt H; Lucock M; Dowell AC · European journal of clinical nutrition · 1998
    Randomized trial119 participantsGeneral Health forFolate
  10. Associations of Serum Folate and Homocysteine Concentrations with All-Cause, Cardiovascular Disease, and Cancer Mortality in Men and Women in Korea: the Cardiovascular Disease Association Study.
    Song S; Song BM; Park HY · The Journal of nutrition · 2023
    Cohort study21,260 participantsGeneral Health forFolate
  11. The concept of folic acid supplementation and its role in prevention of neural tube defect among pregnant women: PRISMA.
    Seyoum Tola F · Medicine · 2024
    Systematic reviewGeneral Health forFolate
  12. Systematic review of adverse health outcomes associated with high serum or red blood cell folate concentrations.
    Colapinto CK; O'Connor DL; Sampson M; Williams B; Tremblay MS · Journal of public health (Oxford, England) · 2017
    Systematic review71,847 participants46 studies pooledGeneral Health forFolate
  13. 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
  14. 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
  15. 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
  16. 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
  17. 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
  18. 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
  19. 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
  20. 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
  21. 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
  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