Home/ Supplements/ Niacin/ Endur-acin

Endur-acin

product on market Tablet or Pill Endurance Products Company Safety: 60/100
60/100

Review before taking

  • Niacin: 250mg is 7.1× the Tolerable Upper Intake Level (35mg)
  • 100% of ingredients have research evidence
C Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · grounded in 1 source · methodology

Niacin is used to support metabolic processes and cardiovascular health, though evidence for athletic performance enhancement is limited. Due to a safety score of 60, users should be aware of potential side effects such as flushing or liver toxicity. Consult a professional regarding appropriate dosing for this ingredient.

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

Alerts

Safety Alerts

Niacin: 250mg is 7.1× the Tolerable Upper Intake Level (35mg)

✨ AI-generated · Qwen 3.6 · grounded in 2 sources · methodology

This product received a low safety score because it contains 250mg of Niacin, which is over seven times the recommended upper limit for daily intake.

Label

Product Label

Label for Endur-acin
Open Full PDF View on NIH DSLD →
Details

Label Data

1 Tablet(s)
Serving Size
Vitamin
Product Type
100%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

250 mg (1563% DV)
Exceeds UL by 7.1× (UL: 35 mg) 196 studies (A:5, B:63)

Other Ingredients

Vegetable Wax Stearic Acid Magnesium Stearate Silica
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Directions: As a dietary supplement for adults, take one (1) tablet daily with food. Do not exceed one tablet daily without consulting a physician.

Warnings & Precautions

Consult your healthcare professional prior to use if you have or suspect a medical condition, are taking any medications, or are pregnant or nursing. Temporary flushing, itching or warming of the skin may occur. Do not use without the advice of your physician if you consume more than modest amounts of alcohol, have poorly controlled diabetes, liver disease, gout, active peptic ulcer disease, or unstable angina.

Consult your healthcare professional prior to use if you have or suspect a medical condition, are taking any medications, or are pregnant or nursing.

Keep out of reach of children.

Do not use if seal is broken or missing. This product has a distinct botanical aroma.

Do not exceed one tablet daily without consulting a physician.

Formulation Notes

Wax matrix Niacin Nicotinic Acid

No salt, sugar, starch, preservatives, artificial color or flavorings.

Additional Information

Store in a cool, dry place.

Extended release

Promotes heart health and cholesterol balance

250mg

12110

Metadata

Product Details

UPC / SKU7 29135 12110 6
DSLD Entry Date2018-07-25
Product TypeVitamin
FormTablet or Pill
BrandEndurance Products Company
DSLD ID177708
Data Updated2026-04-11
Research

Research Evidence

241
Research Sources
55
Avg Quality
113
Meta Analysis
75
Systematic Review
32
Rct
11
Clinical Trial
3
Other
3
Regulatory Source
1
Cochrane Review
1
Narrative Review
1
Openfda Safety
A Niacin for primary and secondary prevention of cardiovascular events
Meta Analysis The Cochrane database of systematic reviews 2017 PubMed DOI
A Use of high potency statins and rates of admission for acute kidney injury: multicenter, retrospective observational analysis of administrative databases
Meta Analysis BMJ (Clinical research ed.) 2013 PubMed DOI
A Effect on cardiovascular risk of high density lipoprotein targeted drug treatments niacin, fibrates, and CETP inhibitors: meta-analysis of randomised controlled trials including 117,411 patients
Meta Analysis BMJ (Clinical research ed.) 2014 PubMed DOI
A A terminal metabolite of niacin promotes vascular inflammation and contributes to cardiovascular disease risk
Meta Analysis Nature medicine 2024 PubMed DOI
A Meta-analysis and imputation refines the association of 15q25 with smoking quantity
Meta Analysis Nature genetics 2010 PubMed DOI
A Genome-wide meta-analyses identify multiple loci associated with smoking behavior
Meta Analysis Nature genetics 2010 PubMed DOI
A Antidepressants for smoking cessation
Meta Analysis The Cochrane database of systematic reviews 2014 PubMed DOI
A Topical azelaic acid, salicylic acid, nicotinamide, sulphur, zinc and fruit acid (alpha-hydroxy acid) for acne
Meta Analysis The Cochrane database of systematic reviews 2020 PubMed DOI
B Assessment of the Role of Niacin in Managing Cardiovascular Disease Outcomes: A Systematic Review and Meta-analysis
Meta Analysis JAMA network open 2019 PubMed DOI
B Association Between Lowering LDL-C and Cardiovascular Risk Reduction Among Different Therapeutic Interventions: A Systematic Review and Meta-analysis
Meta Analysis JAMA 2016 PubMed DOI
View all evidence for Niacin →
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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.