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B-Complex

product on market Tablet or Pill Shaklee Safety: 92/100
92/100

This product looks safe

  • Niacin: 270mg is 7.7× the Tolerable Upper Intake Level (35mg)
  • Folate: 668mg is 668.0× the Tolerable Upper Intake Level (1.0mg)
  • 70% of ingredients have research evidence
D Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

This formula contains B vitamins, including thiamine, riboflavin, and niacin, which are supported by strong evidence for their roles in energy metabolism and cellular function. These nutrients act as essential cofactors in various biochemical reactions throughout the body. The overall profile maintains a high safety score, though evidence coverage for this specific blend is limited.

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

Alerts

Safety Alerts

Niacin: 270mg is 7.7× the Tolerable Upper Intake Level (35mg)

Folate: 668mg is 668.0× the Tolerable Upper Intake Level (1.0mg)

Label

Product Label

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

Label Data

2 Tablet(s)
Serving Size
120
Servings
Vitamin
Product Type
70%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Calories
5 Calorie(s)
Total Carbohydrates
1 Gram(s) (1% DV)
20.25 mg (1688% DV)
16.9× RDA — above typical dose 76 studies (A:0, B:33)
22.95 mg (1765% DV)
17.7× RDA — above typical dose 13 studies (A:0, B:1)
270 mg (1688% DV)
Exceeds UL by 7.7× (UL: 35 mg) 196 studies (A:5, B:63)
27 mg (1588% DV)
20.8× RDA — above typical dose (UL: 100 mg) 114 studies (A:3, B:35)
668 mcg DFE (167% DV)
Exceeds UL by 668.0× (UL: 1.0 mg) 226 studies (A:10, B:105)
81 mcg (3375% DV)
33.8× 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)
135 mg (2700% DV)
27.0× RDA — above typical dose 2 studies — no high-quality reviews

Other Ingredients

Microcrystalline Cellulose Torula Yeast Hydroxypropyl Methylcellulose Croscarmellose Sodium Soy Lecithin, Hydroxylated
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Directions: Take 2 tablets daily.

Warnings & Precautions

Seal under cap for you protection.

Manufactured in a facility that may also process peanuts, tree nuts, milk, eggs, soy, wheat, shellfish, and fish.

Formulation Notes

The perfect balance of all eight B Vitamins These essential nutrients are delivered via a patented Bioactivated Absorption System to support energy, metabolism, heart health & cell renewal. Plus biotin for healthy hair, skin & nails.

GF Gluten Free No artificial flavors, sweeteners, colors, or preservatives

100% Carbon Neutral

Kosher

Supports energy, metabolism, heart health & cell renewal

Star-K (Kosher)

Additional Information

Shaklee Since 1956 Safe - Proven 100% Guaranteed

Dr Shaklee

Star-K (Kosher)

Metadata

Product Details

DSLD Entry Date2025-02-23
Product TypeVitamin
FormTablet or Pill
BrandShaklee
DSLD ID321908
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.