Home/ Supplements/ Thiamine/ B-Complex 125

B-Complex 125

product on market Tablet or Pill The Vitamin Shoppe Safety: 90/100
90/100

This product looks safe

  • Niacin: 125mg is 3.6× the Tolerable Upper Intake Level (35mg)
  • Vitamin B6: 125mg is 1.2× the Tolerable Upper Intake Level (100mg)
  • Folate: 667mg is 667.0× the Tolerable Upper Intake Level (1.0mg)
  • 82% of ingredients have research evidence
F Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

The B-complex vitamins, including thiamine, riboflavin, and folate, are supported by strong evidence for their roles in energy metabolism and neurological function. These ingredients facilitate cellular energy production and support cognitive health. The overall profile maintains a high safety score, indicating a low risk of adverse effects for most users.

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

Alerts

Safety Alerts

Niacin: 125mg is 3.6× the Tolerable Upper Intake Level (35mg)

Vitamin B6: 125mg is 1.2× the Tolerable Upper Intake Level (100mg)

Folate: 667mg is 667.0× the Tolerable Upper Intake Level (1.0mg)

Label

Product Label

Label for B-Complex 125
Open Full PDF View on NIH DSLD →
Details

Label Data

1 Tablet(s)
Serving Size
Other Combinations
Product Type
82%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

125 mg (10415% DV)
104.2× RDA — above typical dose 76 studies (A:0, B:33)
125 mg (9615% DV)
96.2× RDA — above typical dose 13 studies (A:0, B:1)
125 mg NE (780% DV)
Exceeds UL by 3.6× (UL: 35 mg) 196 studies (A:5, B:63)
125 mg (7350% DV)
Exceeds UL by 1.2× (UL: 100 mg) 114 studies (A:3, B:35)
667 mcg DFE (170% DV)
Exceeds UL by 667.0× (UL: 1.0 mg) 226 studies (A:10, B:105)
125 mcg (5210% DV)
52.1× RDA — above typical dose 139 studies (A:1, B:44)
300 mcg (1000% DV)
10.0× RDA — above typical dose 27 studies (A:0, B:11)
125 mg (2500% DV)
25.0× RDA — above typical dose 2 studies — no high-quality reviews
60 mg (10% DV)
Within RDA (0.1× RDA) 38 studies (A:1, B:7)
125 mg
Market median: 550.0mg (217 products) 29 studies (A:0, B:5)
125 mg
Market median: 500.0mg (9 products) 7 studies — no high-quality reviews

Other Ingredients

Hydroxypropyl Methylcellulose silicified Microcrystalline Cellulose Dicalcium Phosphate Stearic Acid Croscarmellose Sodium Magnesium Stearate Silicon Dioxide Aqueous Coating
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Directions: take one (1) tablet daily, preferably with a meal.

Warnings & Precautions

Warning: consult your healthcare provider prior to use if you are pregnant, nursing, taking any medication or have any medical conditions.

Warning: This product contains niacin, which should be taken with food. If taken on an empty stomach, niacin may cause temporary flushing.

Keep out of reach of children.

Tamper evident Do not use if outer seal is broken or missing.

Formulation Notes

Energy production Stress support Nutrient metabolism

Gluten-free Dairy-free Soy-free Nut-free Does Not Contain: Gluten, Sugar, Salt, Preservatives or Artificial Colors.

Additional Information

Vitamin

Store in a cool, dry place.

Quality promise Tested & trusted

Metadata

Product Details

UPC / SKU7 66536 01049 3
DSLD Entry Date2019-12-22
Product TypeOther Combinations
FormTablet or Pill
BrandThe Vitamin Shoppe
DSLD ID208911
Data Updated2026-04-11
Research

Research Evidence

100
Research Sources
56
Avg Quality
48
Systematic Review
30
Meta Analysis
13
Rct
6
Clinical Trial
1
Cochrane Review
1
Regulatory Source
B Thiamine for prevention and treatment of Wernicke-Korsakoff Syndrome in people who abuse alcohol
Systematic Review The Cochrane database of systematic reviews 2013 PubMed DOI
B Efficacy of B-vitamins and vitamin D therapy in improving depressive and anxiety disorders: a systematic review of randomized controlled trials
Systematic Review Nutritional neuroscience 2023 PubMed DOI
B Effect of thiamine supplementation on glycaemic outcomes in adults with type 2 diabetes: a systematic review and meta-analysis
Meta Analysis BMJ open 2022 PubMed DOI
B Effect of intravenous thiamine administration on critically ill patients: A systematic review and meta-analysis of randomized controlled trials
Meta Analysis Clinical nutrition (Edinburgh, Scotland) 2024 PubMed DOI
B Effect of adjunctive vitamin C, glucocorticoids, and vitamin B1 on longer-term mortality in adults with sepsis or septic shock: a systematic review and a component network meta-analysis
Systematic Review Intensive care medicine 2022 PubMed DOI
B Effect of Combined Diclofenac and B Vitamins (Thiamine, Pyridoxine, and Cyanocobalamin) for Low Back Pain Management: Systematic Review and Meta-analysis
Meta Analysis Pain medicine (Malden, Mass.) 2020 PubMed DOI
B Thiamine, Ascorbic Acid, and Hydrocortisone As a Metabolic Resuscitation Cocktail in Sepsis: A Meta-Analysis of Randomized Controlled Trials With Trial Sequential Analysis
Meta Analysis Critical care medicine 2021 PubMed DOI
B The effects of thiamine supplementation on patients with heart failure: A systematic review and meta-analysis of randomized controlled trials
Meta Analysis Complementary therapies in medicine 2022 PubMed DOI
B Hydrocortisone Combined with Vitamin C and Thiamine in the Treatment of Sepsis/Septic Shock: A Systematic Review with Meta-Analysis and Trial Sequential Analysis
Meta Analysis Clinical and investigative medicine. Medecine clinique et experimentale 2023 PubMed DOI
B Thiamine for Wernicke-Korsakoff Syndrome in people at risk from alcohol abuse
Systematic Review The Cochrane database of systematic reviews 2004 PubMed
View all evidence for Thiamine →
Compare

Similar Products

B-1 100 mg
Vitamin World · Tablet or Pill
100
Vitamin B-1 100 mg
Nature's Bounty · Tablet or Pill
100
High Potency B1 100 mg
Sundown Naturals · Tablet or Pill
100
Vitamin B-1 100 mg Supplement
Nature Made · Tablet or Pill
100
Vitamin B1
Whole Foods · Tablet or Pill
100
View all Thiamine products →
Thiamine research Best Thiamine All Thiamine products More from The Vitamin Shoppe View on NIH DSLD →

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