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B-12 Vitamin

product on market Liquid Rejuvica Health Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 100% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · grounded in 1 source · methodology

Vitamin B12 is essential for nerve function and red blood cell production. There is strong evidence supporting its role in treating specific deficiencies and maintaining cognitive health. This ingredient profile is associated with a high safety rating.

AI-generated summary based on research evidence. Not medical advice.

Label

Product Label

Label for B-12 Vitamin
Open Full PDF View on NIH DSLD →
Details

Label Data

1.23 mL
Serving Size
48
Servings
Vitamin
Product Type
100%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

3000 mcg
1250.0× RDA — above typical dose 139 studies (A:1, B:44)

Other Ingredients

Vegetable Glycerin purified water
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Suggested use: As a dietary supplement take 1/4 teaspoon (two squeezes of the bulb) once per day or as recommended by a healthcare practitioner.

Warnings & Precautions

Warning: Consult a qualified healthcare practitioner prior to using herbal products, particularly if you are pregnant, nursing, or on medication.

Discontinue two weeks before scheduled surgery.

Formulation Notes

Liquid sublingual

The finest ingredients all natural

Additional Information

Store in a cool, dry place with lid tightly closed. Do not expose to excessive heat.

HealthyEssentials

Good Manufacturing Practice GMP Certified Made in the USA

48 servings

Metadata

Product Details

DSLD Entry Date2022-01-22
Product TypeVitamin
FormLiquid
BrandRejuvica Health
DSLD ID259362
Data Updated2026-04-11
Research

Research Evidence

237
Research Sources
53
Avg Quality
83
Meta Analysis
74
Systematic Review
45
Rct
29
Clinical Trial
2
Guideline
2
Regulatory Source
1
Openfda Safety
A Associations between serum Homocysteine, vitamin B9, and vitamin B12 levels and the formation of intracranial Aneurysms: A systematic review and meta-analysis
Meta Analysis Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia 2025 PubMed DOI
A Intake of vitamin B6, folate, and vitamin B12 and risk of coronary heart disease: a systematic review and dose-response meta-analysis of prospective cohort studies
Meta Analysis Critical reviews in food science and nutrition 2019 PubMed DOI
A Oral vitamin B12 versus intramuscular vitamin B12 for vitamin B12 deficiency
Systematic Review The Cochrane database of systematic reviews 2018 PubMed DOI
A Effects of Vitamin B12 Supplementation on Cognitive Function, Depressive Symptoms, and Fatigue: A Systematic Review, Meta-Analysis, and Meta-Regression
Meta Analysis Nutrients 2021 PubMed DOI
A Efficacy of different routes of vitamin B12 supplementation for the treatment of patients with vitamin B12 deficiency: A systematic review and network meta-analysis
Systematic Review Irish journal of medical science 2024 PubMed DOI
B Helicobacter pylori infection and micronutrient deficiency in pregnant women: a systematic review and meta-analysis
Meta Analysis BMJ open gastroenterology 2020 PubMed DOI
B Vitamin B12 supplementation during pregnancy for maternal and child health outcomes
Systematic Review The Cochrane database of systematic reviews 2024 PubMed DOI
B A comprehensive review and meta-regression analysis of randomized controlled trials examining the impact of vitamin B12 supplementation on homocysteine levels
Meta Analysis Nutrition reviews 2024 PubMed DOI
B Relationship between vitamin B12 levels and motor development: A systematic review
Systematic Review Clinical nutrition ESPEN 2024 PubMed DOI
B Vitamin B12, folate, and homocysteine in metabolic syndrome: a systematic review and meta-analysis
Meta Analysis Frontiers in endocrinology 2023 PubMed DOI
View all evidence for Vitamin B12 →
Compare

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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.