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Complete B-Complex

product on market Capsule Life Extension Safety: 97/100
97/100

This product looks safe

  • Niacin: 100mg is 2.9× the Tolerable Upper Intake Level (35mg)
  • 82% of ingredients have research evidence
C Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

This B-complex provides essential vitamins that support energy metabolism and neurological function. Strong clinical evidence supports the roles of thiamine, riboflavin, and folate in cellular health. The formulation maintains a high safety profile for general use.

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

Alerts

Safety Alerts

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

Label

Product Label

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

Label Data

2 Vegetarian Capsule(s)
Serving Size
30
Servings
Other Combinations
Product Type
82%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

100 mg (6667% DV)
83.3× RDA — above typical dose 76 studies (A:0, B:33)
100 mg (5882% DV)
76.9× RDA — above typical dose 13 studies (A:0, B:1)
100 mg (500% DV)
Exceeds UL by 2.9× (UL: 35 mg) 196 studies (A:5, B:63)
100 mg (5000% DV)
76.9× RDA — above typical dose (UL: 100 mg) 114 studies (A:3, B:35)
800 mcg (200% DV)
2.0× RDA — within safe limits 226 studies (A:10, B:105)
100 mcg (1667% DV)
41.7× RDA — above typical dose 139 studies (A:1, B:44)
1000 mcg (333% DV)
33.3× RDA — above typical dose 27 studies (A:0, B:11)
200 mg (2000% DV)
40.0× RDA — above typical dose 2 studies — no high-quality reviews
Within RDA (0.2× RDA) 38 studies (A:1, B:7)
100 mg
Market median: 550.0mg (217 products) 29 studies (A:0, B:5)
100 mg
Market median: 500.0mg (9 products) 7 studies — no high-quality reviews

Other Ingredients

Vegetable Cellulose Calcium Silicate Microcrystalline Cellulose Vegetable Stearate
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Read the entire label and follow the directions carefully prior to use. DIRECTIONS: Take two (2) capsules daily with food, or as recommended by a healthcare practitioner.

Warnings & Precautions

~ DO NOT EXCEED RECOMMENDED DOSE. ~ Do not purchase if outer seal is broken or damaged.

~ When using nutritional supplements, please consult with your physician if you are undergoing treatment for a medical condition or if you are pregnant or lactating.

WARNINGS: ~ KEEP OUT OF REACH OF CHILDREN.

Formulation Notes

Provides Balanced Amounts of All B Vitamins

Additional Information

To report a serious adverse event or obtain product information, contact 1-866-280-2852.

Store tightly closed in a cool, dry place.

Scan for product info

Q01735B

Metadata

Product Details

UPC / SKU7 37870 17356 4
DSLD Entry Date2016-04-22
Product TypeOther Combinations
FormCapsule
BrandLife Extension
DSLD ID59053
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.