Get the App
Douglas Laboratories Estroflavone supplement bottle
Douglas Laboratories

Estroflavone Review

What We Researched
3 active ingredients analyzed · 4 inactive ingredients decoded · 6 brand certifications checked · Page generated: Sep 2026
100
Product Score Excellent
100
Brand Score Excellent

Two independent scores — the product and the brand behind it, never blended into one number. See our methodology.

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Hesperidin Methyl Chalcone 250 mg †
Soy Isoflavone Concentrate 100 mg †
Black Cohosh 40 mg †
Bioavailability Excellent

Absorption Rating

  • Hesperidin Methyl Chalcone Good
  • Soy Isoflavone Concentrate Good
  • Black Cohosh Good
Other Ingredients Excellent

Fillers & Additives

  • Gelatin
  • Cellulose
  • Water
  • Magnesium Stearate
Efficacy Excellent

Dosage Analysis

  • Hesperidin Methyl Chalcone 250 mg Effective
  • Soy Isoflavone Concentrate 100 mg Effective
  • Black Cohosh 40 mg Effective

Supplement Facts

Ingredient Amount % Daily Value
Hesperidin Methyl Chalcone 250 mg †
Soy Isoflavone Concentrate 100 mg †
Black Cohosh 40 mg †

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Gelatin Safe

Forms the capsule shell that holds the supplement contents.

Cellulose Safe

Provides bulk and structure in tablets and capsules.

Water Safe

Dissolves and carries water-soluble ingredients.

Magnesium Stearate Safe

Prevents ingredients from sticking to manufacturing equipment during tableting.

Brand Trust Report
Douglas Laboratories

Founded 1955 · Pittsburgh, Pennsylvania, United States · 32 products · douglaslabs.com

Certifications

6 certifications
Consumerlab Source available Primary evidence
Fda Gmp Inspections Source available Primary evidence
Nsf Certified For Sport Source available Primary evidence
Nsf Gmp Source available Primary evidence
Usda Organic Source available Primary evidence
NSF Certified Supporting evidence unavailable

Transparency

5 claims
Third Party Testing Claim — Verified Evidence available Evidence
Coa Availability — Verified Evidence available Evidence
In House Testing — Verified Evidence available Evidence
Testing Lab Disclosure — True Brand claim; evidence unavailable

Violation History

2 incidents
Recall Douglas Labs Stress-B-Plus2024-10-07 Source available Primary source
Prop 65 Lead2008-10-22 Source available Primary source
Related Supplements
Tru Niagen Tru Niagen Pro 1000 mg
Tru Niagen Tru Niagen Pro 1000 mg
Product 100 Brand 100
Jamieson Extra Strength D3 2500 IU
Jamieson Extra Strength D3 2500 IU
Product 100 Brand 100
Gaia Herbs Hibiscus Flower Liquid Phyto-Caps
Gaia Herbs Hibiscus Flower Liquid Phyto-Caps
Product 100 Brand 100
Douglas Laboratories L-Methionine
Douglas Laboratories L-Methionine
Product 100 Brand 100
Douglas Laboratories L-Methionine
Douglas Laboratories L-Methionine
Product 100 Brand 100
Douglas Laboratories Bilberry Max-V
Douglas Laboratories Bilberry Max-V
Product 100 Brand 100
Frequently Asked Questions
Is Douglas Laboratories Estroflavone a good supplement?

Douglas Laboratories Estroflavone received a product quality score of 100/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 3 active ingredients with 60 servings per container. All 4 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives. The manufacturer, Douglas Laboratories, holds a brand trust score of 100/100.

What are the ingredients in Douglas Laboratories Estroflavone?

Douglas Laboratories Estroflavone contains 3 active ingredients: Hesperidin Methyl Chalcone (250 mg), Soy Isoflavone Concentrate (100 mg), Black Cohosh (40 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Douglas Laboratories Estroflavone safe to take?

GoodSupp reviewed the inactive-ingredient data available for Douglas Laboratories Estroflavone. All 4 inactive ingredients — including capsule materials, fillers, and binders — are currently classified as safe in GoodSupp's ingredient reference data. This label analysis cannot determine whether the product is safe for a particular person, and source labels may change. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Douglas Laboratories a trustworthy supplement brand?

Douglas Laboratories receives a brand trust score of 100/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1955 and headquartered in Pittsburgh, Pennsylvania, United States, the company offers 32 products in their lineup. Note: Douglas Laboratories has 2 historical regulatory incidents on record, which are factored into the trust score.

Scan Any Supplement Instantly

Download GoodSupp to scan barcodes, check ingredient safety, and find the best supplements for your needs.

Download on App Store Browse All Supplements
Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records — read our methodology. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.