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Optimal B Complex

product on market Capsule Neurobiologix Safety: 90/100
90/100

This product looks safe

  • Niacin: 60mg is 1.7× the Tolerable Upper Intake Level (35mg)
  • Folate: 680mg is 680.0× the Tolerable Upper Intake Level (1.0mg)
  • 88% of ingredients have research evidence
D 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 nutrients act as essential cofactors for cellular processes throughout the body. Current research indicates a high safety profile for these ingredients when taken at recommended dosages.

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

Alerts

Safety Alerts

Niacin: 60mg is 1.7× the Tolerable Upper Intake Level (35mg)

Folate: 680mg is 680.0× the Tolerable Upper Intake Level (1.0mg)

Label

Product Label

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

Label Data

1 Capsule(s)
Serving Size
60
Servings
Vitamin
Product Type
88%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

50 mg (4167% DV)
41.7× RDA — above typical dose 76 studies (A:0, B:33)
20 mg (1538% DV)
15.4× RDA — above typical dose 13 studies (A:0, B:1)
60 mg NE (375% DV)
Exceeds UL by 1.7× (UL: 35 mg) 196 studies (A:5, B:63)
20 mg (1176% DV)
15.4× RDA — above typical dose (UL: 100 mg) 114 studies (A:3, B:35)
680 mcg DFE (170% DV)
Exceeds UL by 680.0× (UL: 1.0 mg) 226 studies (A:10, B:105)
500 mcg (20833% DV)
208.3× 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)
50 mg (1000% DV)
10.0× RDA — above typical dose 2 studies — no high-quality reviews

Other Ingredients

Hydroxypropyl Methylcellulose Water Microcrystalline Cellulose Silicon Dioxide Ascorbyl Palmitate
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Suggested use: 1 capsule daily with food or as directed by your healthcare practitioner.

Warnings & Precautions

Do not use if shrinkwrap is broken or missing.

Keep out of reach of children.

In case of adverse reaction, call 866-500-5388.

Formulation Notes

Optimal B Complex provides a full-complement of bioactive forms of essential B-complex vitamins in high potency amounts.

Metafolin

Produced under a strict quality management system in compliance with Good Manufacturing Practices (GMPs) and third-party quality certifications.

Vitamin B

Additional Information

Store in a cool, dry place (59 degrees F - 85 degrees F) away from direct light.

Professional use only

Metadata

Product Details

UPC / SKU8 54998 00670 0
DSLD Entry Date2025-05-21
Product TypeVitamin
FormCapsule
BrandNeurobiologix
DSLD ID327696
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.