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Sublingual B12 5000 mcg

product on market Lozenge Sundown Naturals Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 50% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

AI-generated · Qwen 3.6 · methodology

Vitamin B12 and Coenzyme B12 are essential for nerve function and red blood cell formation. There is strong evidence supporting their role in treating B12 deficiency and supporting energy metabolism. These ingredients are generally well-tolerated with a high safety profile.

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

Label

Product Label

Label for Sublingual B12 5000 mcg
Open Full PDF View on NIH DSLD →
Details

Label Data

1 Microlozenge(s)
Serving Size
Vitamin
Product Type
50%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

5000 mcg (83333% DV)
2083.3× RDA — above typical dose 139 studies (A:1, B:44)
Coenzyme B12
100 mcg

Other Ingredients

Mannitol Crospovidone Stearic Acid Natural flavor Contains <2% of:
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

DIRECTIONS: FOR ADULTS, TAKE ONE (1) MICROLOZENGE DAILY. PLACE MICROLOZENGE UNDER TONGUE FOR 30 SECONDS BEFORE SWALLOWING. As a reminder, discuss the supplements and medications you take with your health care providers.

Warnings & Precautions

KEEP OUT OF REACH OF CHILDREN.

WARNING: If you are pregnant, nursing, taking any medications or have any medical condition, consult your doctor before use.

Discontinue use and consult your doctor if any adverse reactions occur.

TAMPER RESISTANT: DO NOT USE IF SEAL UNDER CAP IS BROKEN OR MISSING.

Formulation Notes

VEGETARIAN FORMULA

No Artificial Flavor, No Preservatives, No Sugar, No Starch, No Milk, No Lactose, No Soy, No Gluten, No Yeast, No Fish.

Sodium Free.

Additional Information

STORE AT ROOM TEMPERATURE AND AVOID EXCESSIVE HEAT.

High Potency

PLEASE RECYCLE

Prod. No. 36231 01A B1471 KAA

Promotes Energy Metabolism & Heart Health*

Smart Facts Vitamin B-12 is essential for the normal formation of blood cells and contributes to the health of the nervous system.* In addition, the B vitamins play a role in energy metabolism in the body.*

GUARANTEED QUALITY LABORATORY TESTED

Metadata

Product Details

UPC / SKU0 30768 01471 1
DSLD Entry Date2012-01-25
Product TypeVitamin
FormLozenge
DSLD ID4897
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
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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.