Mason Natural B-12 1000 mcg supplement bottle
Mason Natural

B-12 1000 mcg

What We Researched
2 active ingredients analyzed · 5 inactive ingredients decoded · 2 brand certifications checked · 2 retailers compared · Last updated: Mar 2026
75
Product Score Fair
66
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin B12 (as Cyanocobalamin) 1000 mcg 41667%
Calcium (as Dicalcium Phosphate) 100 mg 8%
Bioavailability Fair

Absorption Rating

  • Vitamin B12 (as Cyanocobalamin) Fair
  • Calcium (as Dicalcium Phosphate) Fair
Other Ingredients Excellent

Fillers & Additives

  • Microcrystalline Cellulose
  • Stearic Acid
  • Croscarmellose Sodium
  • Magnesium Stearate
  • Silicon Dioxide
Efficacy Fair

Dosage Analysis

  • Vitamin B12 (as Cyanocobalamin) 1000 mcg Effective
  • Calcium (as Dicalcium Phosphate) 100 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Vitamin B12 (as Cyanocobalamin) 1000 mcg 41667%
Calcium (as Dicalcium Phosphate) 100 mg 8%

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.

Stearic Acid Safe

Helps ingredients flow smoothly through manufacturing equipment.

Croscarmellose Sodium Safe

Helps tablets break apart and dissolve quickly in the stomach.

Magnesium Stearate Safe

Prevents ingredients from sticking to manufacturing equipment during tableting.

Silicon Dioxide Safe

Prevents clumping and ensures consistent dosing.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$16$15$14$13$12 $13.88
Target

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 B-12 1000 mcg a good supplement?

Mason Natural B-12 1000 mcg received a product quality score of 75/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 2 active ingredients with 60 servings per container. All 5 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives. 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 B-12 1000 mcg?

Mason Natural B-12 1000 mcg contains 2 active ingredients: Vitamin B12 (as Cyanocobalamin) (1000 mcg), Calcium (as Dicalcium Phosphate) (100 mg). Notable high-dose ingredients include Vitamin B12 at 41667% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Mason Natural B-12 1000 mcg safe to take?

Mason Natural B-12 1000 mcg has been analyzed for ingredient safety across all its components. All 5 inactive ingredients — including capsule materials, fillers, and binders — are rated safe based on regulatory data and published safety research. This is a clean formulation with no controversial additives. 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.