Mason Natural Renal Multivitamin, 100 Caplets supplement bottle
Mason Natural

Renal Multivitamin, 100 Caplets

What We Researched
15 active ingredients analyzed · 6 inactive ingredients decoded · 2 brand certifications checked · 3 retailers compared · Last updated: Mar 2026
87
Product Score Good
66
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin C (as ascorbic acid) 60 mg 67%
Vitamin D3 (as cholecalciferol) (1,000 IU) 25 mcg 125%
Thiamin (vitamin B1) (as thiamine mononitrate) 1.5 mg 125%
Riboflavin (vitamin B2) 2 mg 154%
Vitamin B6 (as pyridoxine hydrochloride) 10 mg 588%
Folate (800 mcg folic acid) 1,333 mcg DFE† 333%
Vitamin B12 (as cyanocobalamin) 2.4 mcg 100%
Biotin 30 mcg 100%
Pantothenic Acid (as d-calcium pantothenate) 5 mg 100%
Iron (as ferrous fumarate) 8 mg 44%
Zinc (as zinc oxide) 8 mg 73%
Selenium (as selenium selenite) 55 mcg 100%
Copper (as copper gluconate) 0.9 mg 100%
Inositol Hexanicotinate 20 mg **
Alpha Lipoic Acid 50 mg **
Bioavailability Good

Absorption Rating

  • Vitamin C (as ascorbic acid) Fair
  • Vitamin D3 (as cholecalciferol) (1,000 IU) Good
  • Thiamin (vitamin B1) (as thiamine mononitrate) Fair
  • Riboflavin (vitamin B2) Good
  • Vitamin B6 (as pyridoxine hydrochloride) Fair
  • Folate (800 mcg folic acid) Fair
  • Vitamin B12 (as cyanocobalamin) Fair
  • Biotin Good
  • Pantothenic Acid (as d-calcium pantothenate) Good
  • Iron (as ferrous fumarate) Fair
  • Zinc (as zinc oxide) Poor
  • Selenium (as selenium selenite) Good
  • Copper (as copper gluconate) Good
  • Inositol Hexanicotinate Good
  • Alpha Lipoic Acid Fair
Other Ingredients Excellent

Fillers & Additives

  • Microcrystalline Cellulose
  • Pharmaceutical Glaze
  • Silicon Dioxide
  • Vegetable Magnesium Stearate
  • Croscarmellose Sodium
  • Stearic Acid
Efficacy Very Good

Dosage Analysis

  • Vitamin C (as ascorbic acid) 60 mg Under-dosed
  • Vitamin D3 (as cholecalciferol) (1,000 IU) 25 mcg Effective
  • Thiamin (vitamin B1) (as thiamine mononitrate) 1.5 mg Effective
  • Riboflavin (vitamin B2) 2 mg Effective
  • Vitamin B6 (as pyridoxine hydrochloride) 10 mg Effective
  • Folate (800 mcg folic acid) 1,333 mcg DFE† High
  • Vitamin B12 (as cyanocobalamin) 2.4 mcg Effective
  • Biotin 30 mcg Effective
  • Pantothenic Acid (as d-calcium pantothenate) 5 mg Effective
  • Iron (as ferrous fumarate) 8 mg Effective
  • Zinc (as zinc oxide) 8 mg Effective
  • Selenium (as selenium selenite) 55 mcg Effective
  • Copper (as copper gluconate) 0.9 mg Effective
  • Inositol Hexanicotinate 20 mg Under-dosed
  • Alpha Lipoic Acid 50 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Vitamin C (as ascorbic acid) 60 mg 67%
Vitamin D3 (as cholecalciferol) (1,000 IU) 25 mcg 125%
Thiamin (vitamin B1) (as thiamine mononitrate) 1.5 mg 125%
Riboflavin (vitamin B2) 2 mg 154%
Vitamin B6 (as pyridoxine hydrochloride) 10 mg 588%
Folate (800 mcg folic acid) 1,333 mcg DFE† 333%
Vitamin B12 (as cyanocobalamin) 2.4 mcg 100%
Biotin 30 mcg 100%
Pantothenic Acid (as d-calcium pantothenate) 5 mg 100%
Iron (as ferrous fumarate) 8 mg 44%
Zinc (as zinc oxide) 8 mg 73%
Selenium (as selenium selenite) 55 mcg 100%
Copper (as copper gluconate) 0.9 mg 100%
Inositol Hexanicotinate 20 mg **
Alpha Lipoic Acid 50 mg **

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.

Pharmaceutical Glaze Generally_safe

It is used to coat tablets or capsules for easier swallowing or controlled release.

Silicon Dioxide Safe

Prevents clumping and ensures consistent dosing.

Vegetable Magnesium Stearate Safe

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

Croscarmellose Sodium Safe

Helps tablets break apart and dissolve quickly in the stomach.

Stearic Acid Safe

Helps ingredients flow smoothly through manufacturing equipment.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$19$17$15$14$12 Mar 12 $16.99$14.00
iHerb
Vitacost

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
Related Supplements
Frequently Asked Questions
Is Mason Natural Renal Multivitamin, 100 Caplets a good supplement?

Mason Natural Renal Multivitamin, 100 Caplets received a product quality score of 87/100 in GoodSupp's independent analysis, indicating strong overall quality. The product contains 15 active ingredients Of the 6 inactive ingredients, 5 are rated safe and 0 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 Renal Multivitamin, 100 Caplets?

Mason Natural Renal Multivitamin, 100 Caplets contains 15 active ingredients: Vitamin C (as ascorbic acid) (60 mg), Vitamin D3 (as cholecalciferol) (1,000 IU) (25 mcg), Thiamin (vitamin B1) (as thiamine mononitrate) (1.5 mg), Riboflavin (vitamin B2) (2 mg), Vitamin B6 (as pyridoxine hydrochloride) (10 mg), Folate (800 mcg folic acid) (1,333 mcg DFE†), and 9 more. Notable high-dose ingredients include Vitamin B6 at 588% DV, Folate at 333% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Mason Natural Renal Multivitamin, 100 Caplets safe to take?

Mason Natural Renal Multivitamin, 100 Caplets 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 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.

How much vitamin d3 should i take daily?

The optimal dosage depends on your individual health needs, age, sex, and current nutrient levels. Recommended daily amounts are established by health authorities but may vary from therapeutic doses used in clinical research. It's important to check the Supplement Facts label for the exact amount per serving and compare it against the % Daily Value. Some supplements provide mega-doses well above the Daily Value, which may not be necessary and in some cases could be harmful — particularly for fat-soluble vitamins (A, D, E, K) that accumulate in the body. GoodSupp's efficacy analysis evaluates whether a product's dosages align with clinically studied amounts. Always consult your healthcare provider for personalized dosage recommendations.

What does vitamin d do?

This is an important question for supplement consumers. The dietary supplement industry is largely self-regulated, which means product quality, ingredient transparency, and safety practices vary significantly between brands and products. The most reliable way to evaluate any supplement is to check for third-party testing certifications, review the full ingredient list and dosages, and research the brand's regulatory track record. GoodSupp's database of over 250,000 analyzed products provides independent quality scores, ingredient safety ratings, and brand trust reports to help you make evidence-based decisions.

How much vitamin d3 per day for a woman?

The optimal dosage depends on your individual health needs, age, sex, and current nutrient levels. Recommended daily amounts are established by health authorities but may vary from therapeutic doses used in clinical research. It's important to check the Supplement Facts label for the exact amount per serving and compare it against the % Daily Value. Some supplements provide mega-doses well above the Daily Value, which may not be necessary and in some cases could be harmful — particularly for fat-soluble vitamins (A, D, E, K) that accumulate in the body. GoodSupp's efficacy analysis evaluates whether a product's dosages align with clinically studied amounts. Always consult your healthcare provider for personalized dosage recommendations.

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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.