Natural Factors Natural Factors Milk Thistle 250 mg/150 mg Silymarin, 120 Capsules, Helps Support Liver Function, Plus Dandelion Root & Turmeric, Proudly Canadian supplement bottle
Natural Factors

Natural Factors Milk Thistle 250 mg/150 mg Silymarin, 120 Capsules, Helps Support Liver Function, Plus Dandelion Root & Turmeric, Proudly Canadian

What We Researched
4 active ingredients analyzed · 4 inactive ingredients decoded · 5 brand certifications checked · 1 retailer compared · Last updated: Mar 2026
65
Product Score Fair
88
Brand Score Good

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Milk thistle extract (Silybum marianum) (seed) (Standardized to 150 mg silymarin) 250 mg
Milk thistle extract (Silybum marianum) (seed) (Standardized to 150 mg silymarin) 250 mg
Dandelion powder (Taraxacum officinale) (root) 55 mg
Turmeric powder (Curcuma longa) (rhizome) 27.5 mg
Bioavailability Very Poor

Absorption Rating

  • Milk thistle extract (Silybum marianum) (seed) (Standardized to 150 mg silymarin) Poor
  • Milk thistle extract (Silybum marianum) (seed) (Standardized to 150 mg silymarin) Poor
  • Dandelion powder (Taraxacum officinale) (root) Fair
  • Turmeric powder (Curcuma longa) (rhizome) Poor
Other Ingredients Excellent

Fillers & Additives

  • Gelatin Capsule (Gelatin, Purified Water)
  • Rice Powder
  • Vegetable grade magnesium stearate (lubricant)
  • Silica
Efficacy Fair

Dosage Analysis

  • Milk thistle extract (Silybum marianum) (seed) (Standardized to 150 mg silymarin) 250 mg Effective
  • Milk thistle extract (Silybum marianum) (seed) (Standardized to 150 mg silymarin) 250 mg Effective
  • Dandelion powder (Taraxacum officinale) (root) 55 mg Under-dosed
  • Turmeric powder (Curcuma longa) (rhizome) 27.5 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Milk thistle extract (Silybum marianum) (seed) (Standardized to 150 mg silymarin) 250 mg
Milk thistle extract (Silybum marianum) (seed) (Standardized to 150 mg silymarin) 250 mg
Dandelion powder (Taraxacum officinale) (root) 55 mg
Turmeric powder (Curcuma longa) (rhizome) 27.5 mg

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Gelatin Capsule (Gelatin, Purified Water) Safe

It is used to encapsulate supplement ingredients.

Rice Powder Safe

It is used as a filler or flow agent.

Vegetable grade magnesium stearate (lubricant) Unknown
Silica Safe

Prevents ingredients from clumping and improves powder flow.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$22$21$20$19$18 Mar 12 $19.95
Amazon_Ca

Prices shown at time of last check. Click a retailer to see current price. GoodSupp is not affiliated with any retailer.

Brand Trust Report
Natural Factors

Founded 1950 · Coquitlam, British Columbia, Canada · 390 products · naturalfactors.com

Certifications

5 certifications
B Corp Certified Verified Source
Usp Verified Verified Source
Fda Gmp Inspections Verified Source
Non Gmo Project Verified Source
Usda Organic Verified Source

Transparency

4 claims
Third Party Testing Claim — Verified Source
Testing Lab Disclosure — Verified Source
In House Testing — Verified Source

Violation History

5 incidents
Prop 65 Lead2025-10-31Source
Recall Hi Potency B Complex, RevitalX, Super Multi® IRON FREE2024-07-19Source
Lawsuit Products labeled as containing glucosamine sulfate did not contain the ingredient.2021Source
Prop 65 Lead2016-01-13Source
Recall Natural Factors L-Arginine 500mg2006-04-05Source
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Frequently Asked Questions
Is Natural Factors Natural Factors Milk Thistle 250 mg/150 mg Silymarin, 120 Capsules a good supplement?

Natural Factors Natural Factors Milk Thistle 250 mg/150 mg Silymarin, 120 Capsules, Helps Support Liver Function, Plus Dandelion Root & Turmeric, Proudly Canadian received a product quality score of 65/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 4 active ingredients Of the 4 inactive ingredients, 3 are rated safe and 0 are flagged for review. The manufacturer, Natural Factors, holds a brand trust score of 88/100 with 5 verified certifications including B Corp Certified, Usp Verified, Fda Gmp Inspections, Non Gmo Project.

What are the ingredients in Natural Factors Natural Factors Milk Thistle 250 mg/150 mg Silymarin, 120 Capsules?

Natural Factors Natural Factors Milk Thistle 250 mg/150 mg Silymarin, 120 Capsules contains 4 active ingredients: Milk thistle extract (Silybum marianum) (seed) (Standardized to 150 mg silymarin) (250 mg), Milk thistle extract (Silybum marianum) (seed) (Standardized to 150 mg silymarin) (250 mg), Dandelion powder (Taraxacum officinale) (root) (55 mg), Turmeric powder (Curcuma longa) (rhizome) (27.5 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Natural Factors Natural Factors Milk Thistle 250 mg/150 mg Silymarin, 120 Capsules safe to take?

Natural Factors Natural Factors Milk Thistle 250 mg/150 mg Silymarin, 120 Capsules, Helps Support Liver Function, Plus Dandelion Root & Turmeric, Proudly Canadian has been analyzed for ingredient safety across all its components. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Natural Factors a trustworthy supplement brand?

Natural Factors receives a brand trust score of 88/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1950 and headquartered in Coquitlam, British Columbia, Canada, the company offers 390 products in their lineup. They hold 5 verified certifications including B Corp Certified, Usp Verified, Fda Gmp Inspections, Non Gmo Project. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Natural Factors has 5 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. 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.