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Estrogen Blocker

product on market Capsule Iron Brothers Supplements Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 25% of ingredients have research evidence
B Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

Indole-3-Carbinole and grape seed extract are researched for their roles in estrogen metabolism and antioxidant support, though evidence for systemic estrogen blocking is limited. Tribulus terrestris is commonly used for libido, while Bioperine enhances nutrient absorption. Overall, clinical evidence supporting the combined efficacy of these ingredients for estrogen modulation remains limited.

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

Label

Product Label

Label for Estrogen Blocker
Open Full PDF View on NIH DSLD →
Details

Label Data

2 Capsule(s)
Serving Size
30
Servings
Other Combinations
Product Type
25%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Tribulus terrestris
300 mg
Market median: 100.0mg (284 products) 10 studies (A:0, B:4)
Indole-3-Carbinole
75 mg
Bioperine
5 mg

Other Ingredients

Hypromellose Brown Rice Flour
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Directions Take (2) capsules daily with food. Do not exceed 8 weeks of continuous use without a 4 week off period.

Warnings & Precautions

Warnings Not for use of persons under the age of 18. Keep out of reach of children.

Consult your doctor prior to use if you have any medical conditions or if you are taking any other medications.

Discontinue use immediately if you experience rapid heartbeat, dizziness, vomiting or other similar symptoms. Do not use if safety seal is damaged or missing.

Formulation Notes

Testosterone booster Lean muscle support Test boost

Additional Information

Store in a cool, dry place.

Visit us online www.ironbrothers.com

Transparent ingredients Full label disclosure

GMP Compliant Good Manufacturing Practice Made in the U.S.A.

Metadata

Product Details

UPC / SKUX001RVGBZF
DSLD Entry Date2022-05-19
Product TypeOther Combinations
FormCapsule
BrandIron Brothers Supplements
DSLD ID263521
Data Updated2026-04-11
Research

Research Evidence

14
Research Sources
50
Avg Quality
9
Rct
2
Meta Analysis
2
Clinical Trial
1
Systematic Review
B Low Dose Monacolin K Combined with Coenzyme Q10, Grape Seed, and Olive Leaf Extracts Lowers LDL Cholesterol in Patients with Mild Dyslipidemia: A Multicenter, Randomized Controlled Trial
Rct Nutrients 2023 PubMed DOI
B Efficacy of Bilberry and Grape Seed Extract Supplement Interventions to Improve Glucose and Cholesterol Metabolism and Blood Pressure in Different Populations-A Systematic Review of the Literature
Systematic Review Nutrients 2021 PubMed DOI
B The effect of grape seed extract on cardiovascular risk markers: a meta-analysis of randomized controlled trials
Meta Analysis Journal of the American Dietetic Association 2011 PubMed DOI
B The impact of grape seed extract treatment on blood pressure changes: A meta-analysis of 16 randomized controlled trials
Meta Analysis Medicine 2016 PubMed DOI
B Grape Seed Extract Positively Modulates Blood Pressure and Perceived Stress: A Randomized, Double-Blind, Placebo-Controlled Study in Healthy Volunteers
Rct Nutrients 2021 PubMed DOI
C Effects of grape seed extract beverage on blood pressure and metabolic indices in individuals with pre-hypertension: a randomised, double-blinded, two-arm, parallel, placebo-controlled trial
Rct The British journal of nutrition 2016 PubMed DOI
C Effect of grape seed extract on blood pressure in subjects with the metabolic syndrome
Rct Metabolism: clinical and experimental 2009 PubMed DOI
C Grape seed extract supplementation along with a restricted-calorie diet improves cardiovascular risk factors in obese or overweight adult individuals: A randomized, placebo-controlled trial
Rct Phytotherapy research : PTR 2021 PubMed DOI
C The effect of polyphenol-rich chardonnay seed supplements on peripheral endothelial function.
Rct European journal of nutrition PubMed DOI
C The effects of grape seed extract supplementation on cardiovascular risk factors, liver enzymes and hepatic steatosis in patients with non-alcoholic fatty liver disease: a randomised, double-blind, placebo-controlled study.
Rct BMC complementary medicine and therapies PubMed DOI
View all evidence for Grape Seed →
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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.