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Ultra B-100 Complex

product on market Tablet or Pill Mason Natural Safety: 94/100
94/100

This product looks safe

  • Niacin: 100mg is 2.9× the Tolerable Upper Intake Level (35mg)
  • Folate: 667mg is 667.0× the Tolerable Upper Intake Level (1.0mg)
  • 69% of ingredients have research evidence
D Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

The B-complex vitamins, including B1, B2, B6, and folate, are supported by strong evidence for their roles in energy metabolism and neurological function. These ingredients are generally well-tolerated and essential for cellular health. Research indicates a high safety profile for these nutrients when taken within established daily limits.

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

Alerts

Safety Alerts

Niacin: 100mg is 2.9× the Tolerable Upper Intake Level (35mg)

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

Label

Product Label

Label for Ultra B-100 Complex
Open Full PDF View on NIH DSLD →
Details

Label Data

1 Tablet(s)
Serving Size
100
Servings
Other Combinations
Product Type
69%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

100 mg (8330% DV)
83.3× RDA — above typical dose 76 studies (A:0, B:33)
100 mg (7690% DV)
76.9× RDA — above typical dose 13 studies (A:0, B:1)
100 mg NE (630% DV)
Exceeds UL by 2.9× (UL: 35 mg) 196 studies (A:5, B:63)
100 mg (5880% DV)
76.9× RDA — above typical dose (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)
100 mcg (4170% DV)
41.7× RDA — above typical dose 139 studies (A:1, B:44)
100 mcg (330% DV)
3.3× RDA — above typical dose 27 studies (A:0, B:11)
100 mg (2000% DV)
20.0× RDA — above typical dose 2 studies — no high-quality reviews
100 mcg (1% DV)
Market median: 125.0mg (294 products) 38 studies (A:1, B:7)
Calcium
77 mg (6% DV)
100 mcg
Market median: 550.0mg (217 products) 29 studies (A:0, B:5)
Market median: 500.0mg (9 products) 7 studies — no high-quality reviews
Natural Food Base
100 mg

Other Ingredients

Microcrystalline Cellulose Croscarmellose Sodium Stearic Acid Vegetable Magnesium Stearate Pharmaceutical Glaze Silicon Dioxide Calcium Carbonate Maltodextrin
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Directions: Adults - Take one tablet daily, preferably with food, as a dietary supplement.

Warnings & Precautions

Allergen Certification - This product contains soy.

Caution: If you are pregnant, nursing, taking any medications or have any medical condition, consult your physician before use. Some supplements may interact with certain medications and/or interfere with certain lab tests.

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

Keep out of reach of children.

Tamper-Evident Seal: Do not use product if seal appears tampered.

Formulation Notes

May support heart and nervous system health

Natural color variation may occur in this product.

Guaranteed no added: Sugar, yeast, wheat, diary, gluten, fish, tree nuts, peanuts, egg, fragrance, artificial colors or flavors, preservatives, animal products, crustacean shellfish. Sodium free.

Gluten free

Additional Information

Mason guarantee Laboratory Tested cGMP Certified Good Manufacturing Practice

Certified N Mason natural Est. 1967

Store in a dry place under controlled room temperature: 20 degrees - 25 degrees C (68 degrees - 77 degrees F).

Please recycle

Metadata

Product Details

UPC / SKU3 11845 06441 7
DSLD Entry Date2021-04-22
Product TypeOther Combinations
FormTablet or Pill
BrandMason Natural
DSLD ID244840
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 →
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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.