Mason Natural Iron, 65 mg, 100 Tablets supplement bottle
Mason Natural

Iron, 65 mg, 100 Tablets

What We Researched
1 active ingredient analyzed · 12 inactive ingredients decoded · 2 brand certifications checked · 1 retailer compared · Last updated: Mar 2026
56
Product Score Poor
66
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Iron (from 325 mg or 5 grains of ferrous sulfate) 65 mg 361%
Bioavailability Fair

Absorption Rating

  • Iron (from 325 mg or 5 grains of ferrous sulfate) Fair
Other Ingredients Poor

Fillers & Additives

  • Microcrystalline Cellulose
  • Hydroxypropyl Cellulose
  • Croscarmellose Sodium
  • Hydroxypropyl Methylcellulose
  • Stearic Acid
  • Vegetable Magnesium Stearate
  • Silicon Dioxide
  • Glyceryl Triacetate
  • Chlorophyll
  • Titanium Dioxide High
  • FD&C Yellow #6 Low
  • FD&C Blue #2 High
Efficacy Very Good

Dosage Analysis

  • Iron (from 325 mg or 5 grains of ferrous sulfate) 65 mg High

Supplement Facts

Ingredient Amount % Daily Value
Iron (from 325 mg or 5 grains of ferrous sulfate) 65 mg 361%

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Microcrystalline Cellulose Safe

Adds bulk to small-dose supplements to make tablets/capsules a manageable size.

Hydroxypropyl Cellulose Safe

Binds tablet ingredients and can form tablet coatings.

Croscarmellose Sodium Safe

Helps tablets break apart and dissolve quickly in the stomach.

Hydroxypropyl Methylcellulose Safe

It is used as a coating for tablets and capsules.

Stearic Acid Safe

Helps ingredients flow smoothly through manufacturing equipment.

Vegetable Magnesium Stearate Safe

Prevents ingredients from sticking to equipment. Derived from vegetable sources.

Silicon Dioxide Safe

Prevents clumping and ensures consistent dosing.

Glyceryl Triacetate Generally_safe

It is used as a solvent or to improve the texture of supplements.

Chlorophyll Safe

It is used as a natural colorant.

Titanium Dioxide Caution

Used as a whitening agent in tablet coatings and capsules.

FD&C Yellow #6 Caution

It is used to add color to the supplement.

FD&C Blue #2 Unknown

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$8$7$6$5$4 Mar 12 $6.32
iHerb

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

Brand Trust Report
Mason Natural

Founded 1967 · Miami Lakes, Florida, USA · 161 products · masonvitamins.com

Certifications

2 certifications
Consumerlab Verified Source
Fda Gmp Inspections Verified Source

Transparency

2 claims
Third Party Testing Claim — Claimed Source

Violation History

4 incidents
Recall Herbal Colon Cleanser Capsules2025-09-02Source
Recall Healthy Sense Daily Multiple with Iron and People's Choice Women's Daily Vitamins with Iron2022-11-17Source
Prop 65 Lead2017-03-10Source
Prop 65 Lead2016-03-28Source
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Frequently Asked Questions
Is Mason Natural Iron, 65 mg a good supplement?

Mason Natural Iron, 65 mg, 100 Tablets received a product quality score of 56/100 in GoodSupp's independent analysis, indicating several areas of concern that consumers should review. The product contains 1 active ingredients Of the 12 inactive ingredients, 8 are rated safe and 2 are flagged for review. The manufacturer, Mason Natural, holds a brand trust score of 66/100 with 2 verified certifications including Consumerlab, Fda Gmp Inspections.

What are the ingredients in Mason Natural Iron, 65 mg?

Mason Natural Iron, 65 mg contains 1 active ingredients: Iron (from 325 mg or 5 grains of ferrous sulfate) (65 mg). Notable high-dose ingredients include Iron at 361% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Mason Natural Iron, 65 mg safe to take?

Mason Natural Iron, 65 mg, 100 Tablets has been analyzed for ingredient safety across all its components. Of 12 inactive ingredients, 8 are rated safe. 2 ingredients are flagged for review: Titanium Dioxide, FD&C Yellow #6. 'Caution' doesn't mean dangerous — it indicates the ingredient has some considerations worth being aware of, such as potential sensitivities or ongoing research. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Mason Natural a trustworthy supplement brand?

Mason Natural receives a brand trust score of 66/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1967 and headquartered in Miami Lakes, Florida, USA, the company offers 161 products in their lineup. They hold 2 verified certifications including Consumerlab, Fda Gmp Inspections. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Mason Natural 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. 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.