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Windmill Ashwagandha supplement bottle
Windmill

Ashwagandha Review

What We Researched
2 active ingredients analyzed · 3 inactive ingredients decoded · 2 brand certifications checked · Page generated: Sep 2026
96
Product Score Excellent
83
Brand Score Good

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
Ashwagandha Root Extract (as Withania somnifera Root Extract) 1100 mg †
Black Pepper 10 mg †
Bioavailability Excellent

Absorption Rating

  • Ashwagandha Root Extract (as Withania somnifera Root Extract) Good
  • Black Pepper Good
Other Ingredients Excellent

Fillers & Additives

  • Gelatin
  • Magnesium Stearate
  • Silica
Efficacy Very Good

Dosage Analysis

  • Ashwagandha Root Extract (as Withania somnifera Root Extract) 1100 mg High
  • Black Pepper 10 mg Effective

Supplement Facts

Ingredient Amount % Daily Value
Ashwagandha Root Extract (as Withania somnifera Root Extract) 1100 mg †
Black Pepper 10 mg †

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Gelatin Safe

Forms the capsule shell that holds the supplement contents.

Magnesium Stearate Safe

Prevents ingredients from sticking to manufacturing equipment during tableting.

Silica Safe

Prevents ingredients from clumping and improves powder flow.

Brand Trust Report
Windmill

Founded 1972 · West Caldwell, New Jersey, United States · 302 products · windmillvitamins.com/

Certifications

2 certifications
Fda Gmp Inspections Source available Primary evidence
NSF Certified Supporting evidence unavailable

Transparency

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

Violation History

4 incidents
Prop 65 Lead2024-11-15 Source available Primary source
Prop 65 Lead and Cadmium2018-10-01 Source available Primary source
Lawsuit Deceptive packaging with excessive empty space (slack-fill) in their Super Greens product containers.2018 Source available Primary source
Fda Warning Violations of Current Good Manufacturing Practices (cGMP) and making drug claims for several of their supplement products.2014-10-07 Source available Primary source
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Frequently Asked Questions
Is Windmill Ashwagandha a good supplement?

Windmill Ashwagandha received a product quality score of 96/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 2 active ingredients with 30 servings per container. All 3 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives. The manufacturer, Windmill, holds a brand trust score of 83/100.

What are the ingredients in Windmill Ashwagandha?

Windmill Ashwagandha contains 2 active ingredients: Ashwagandha Root Extract (as Withania somnifera Root Extract) (1100 mg), Black Pepper (10 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Windmill Ashwagandha safe to take?

GoodSupp reviewed the inactive-ingredient data available for Windmill Ashwagandha. All 3 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 Windmill a trustworthy supplement brand?

Windmill receives a brand trust score of 83/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1972 and headquartered in West Caldwell, New Jersey, United States, the company offers 302 products in their lineup. Note: Windmill has 4 historical regulatory incidents on record, which are factored into the trust score.

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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.