🟢 100/100

This product looks safe

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

Product Label

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Label Data

1 Tablet(s) Serving Size
50 Servings
Vitamin Product Type
100% Evidence Coverage

Supplement Facts — Evidence Check

2 mg (33333% DV)
📊 833.3× RDA — above typical dose 📚 138 studies (Tier A: 1, B: 44)
RDA 0.0024mg This product: 2mg

Other Ingredients

Sorbitol Mannitol natural Raspberry flavor natural Peach flavor Magnesium Stearate

Label Claims — Verification

Nutrient
All Other
Structure/Function
All Other (99% of products) Structure/Function (89% of products) Nutrient (56% of products)

Target Groups

Vegetarian Adult (18 - 50 Years) Gluten Free Dairy Free Sugar Free

Product Information

📋 Directions for Use

Suggested Use: 1 tablet daily. Place tablet under the tongue and allow to dissolve slowly altering its position to avoid prolonged contact with same area.

⚠️ Warnings & Precautions

Do not use if either tamper-evident seal is broken or missing.

Keep out of the reach of children.

Note: If you are pregnant, may become pregnant, or breastfeeding, consult your health care professional before using this product.

🧪 Formulation Notes

Sublingual

Vegetarian

Vitamin B-12 is an essential nutrient, involved in protein formation. The coenzyme form of vitamin B-12 is necessary for carbohydrate, protein and fat metabolism, as well as for proper DNA replication.

Source Naturals Vitamin B-12 tablets are formulated to dissolve easily under the tongue for more direct absorption into the bloodstream. This minimizes destruction of the vitamin B-12 by stomach acids.

Suitable for vegetarians.

Contains no yeast, dairy, egg, gluten, soy or wheat. Contains no sugar, salt, preservatives, or artificial color, flavor or fragrance.

Product Details

UPC / SKU 0 21078 00417 2
DSLD Entry Date 2023-08-23
Product Type Vitamin
Form Tablet or Pill
DSLD ID 295586
Data Updated 2026-04-11

Research Evidence

237 Research Sources
53 Avg Quality Score
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
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
A Oral vitamin B12 versus intramuscular vitamin B12 for vitamin B12 deficiency
Systematic Review The Cochrane database of systematic reviews 2018
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
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
B Helicobacter pylori infection and micronutrient deficiency in pregnant women: a systematic review and meta-analysis
Meta Analysis BMJ open gastroenterology 2020
B Vitamin B12 supplementation during pregnancy for maternal and child health outcomes
Systematic Review The Cochrane database of systematic reviews 2024
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
B Relationship between vitamin B12 levels and motor development: A systematic review
Systematic Review Clinical nutrition ESPEN 2024
B Vitamin B12, folate, and homocysteine in metabolic syndrome: a systematic review and meta-analysis
Meta Analysis Frontiers in endocrinology 2023
View all evidence for Vitamin B12 →

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