Mason Natural Ultra B-100 Complex, 100 Tablets supplement bottle
Mason Natural

Ultra B-100 Complex, 100 Tablets

What We Researched
13 active ingredients analyzed · 8 inactive ingredients decoded · 2 brand certifications checked · 4 retailers compared · Last updated: Mar 2026
82
Product Score Good
66
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin B1 (as thiamine hydrochloride) 100 mg 8,333%
Vitamin B2 (as riboflavin) 100 mg 7,692%
Niacin (as niacinamide) 100 mg NE‡ 625%
Vitamin B6 (as pyridoxine hydrochloride) 100 mg 5,882%
Folate (400 mcg folic acid) 667 mcg DFE† 167%
Vitamin B12 (as cyanocobalamin) 100 mcg 4,167%
Biotin 100 mcg 333%
Pantothenic Acid (as calcium pantothenate) 100 mg 2,000%
Choline (as choline bitartrate) 100 mcg <1%
Calcium (as dicalcium phosphate) 77 mg 6%
Inositol 100 mcg **
Para-Aminobenzoic acid (PABA) 100 mcg **
Natural FoodbaseAlfalfa Powder (Medicago sativa), Watercress 10:1 Extract (Nasturtium officinale), Parsley 4:1 Extract (Petroselinum crispum), Lecithin. 100 mg **
Bioavailability Good

Absorption Rating

  • Vitamin B1 (as thiamine hydrochloride) Fair
  • Vitamin B2 (as riboflavin) Good
  • Niacin (as niacinamide) Good
  • Vitamin B6 (as pyridoxine hydrochloride) Fair
  • Folate (400 mcg folic acid) Fair
  • Vitamin B12 (as cyanocobalamin) Fair
  • Biotin Good
  • Pantothenic Acid (as calcium pantothenate) Good
  • Choline (as choline bitartrate) Poor
  • Calcium (as dicalcium phosphate) Fair
  • Inositol Good
  • Para-Aminobenzoic acid (PABA) Good
  • Natural FoodbaseAlfalfa Powder (Medicago sativa), Watercress 10:1 Extract (Nasturtium officinale), Parsley 4:1 Extract (Petroselinum crispum), Lecithin. Fair
Other Ingredients Excellent

Fillers & Additives

  • Microcrystalline Cellulose
  • Croscarmellose Sodium
  • Stearic Acid
  • Vegetable Magnesium Stearate
  • Pharmaceutical Glaze
  • Silicon Dioxide
  • Calcium Carbonate
  • Maltodextrin used as processing aid
Efficacy Fair

Dosage Analysis

  • Vitamin B1 (as thiamine hydrochloride) 100 mg Effective
  • Vitamin B2 (as riboflavin) 100 mg Effective
  • Niacin (as niacinamide) 100 mg NE‡ High
  • Vitamin B6 (as pyridoxine hydrochloride) 100 mg Effective
  • Folate (400 mcg folic acid) 667 mcg DFE† Effective
  • Vitamin B12 (as cyanocobalamin) 100 mcg Effective
  • Biotin 100 mcg Effective
  • Pantothenic Acid (as calcium pantothenate) 100 mg Effective
  • Choline (as choline bitartrate) 100 mcg Under-dosed
  • Calcium (as dicalcium phosphate) 77 mg Under-dosed
  • Inositol 100 mcg Under-dosed
  • Para-Aminobenzoic acid (PABA) 100 mcg Under-dosed
  • Natural FoodbaseAlfalfa Powder (Medicago sativa), Watercress 10:1 Extract (Nasturtium officinale), Parsley 4:1 Extract (Petroselinum crispum), Lecithin. 100 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Vitamin B1 (as thiamine hydrochloride) 100 mg 8,333%
Vitamin B2 (as riboflavin) 100 mg 7,692%
Niacin (as niacinamide) 100 mg NE‡ 625%
Vitamin B6 (as pyridoxine hydrochloride) 100 mg 5,882%
Folate (400 mcg folic acid) 667 mcg DFE† 167%
Vitamin B12 (as cyanocobalamin) 100 mcg 4,167%
Biotin 100 mcg 333%
Pantothenic Acid (as calcium pantothenate) 100 mg 2,000%
Choline (as choline bitartrate) 100 mcg <1%
Calcium (as dicalcium phosphate) 77 mg 6%
Inositol 100 mcg **
Para-Aminobenzoic acid (PABA) 100 mcg **
Natural FoodbaseAlfalfa Powder (Medicago sativa), Watercress 10:1 Extract (Nasturtium officinale), Parsley 4:1 Extract (Petroselinum crispum), Lecithin. 100 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.

Croscarmellose Sodium Safe

Helps tablets break apart and dissolve quickly in the stomach.

Stearic Acid Safe

Helps ingredients flow smoothly through manufacturing equipment.

Vegetable Magnesium Stearate Safe

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

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.

Calcium Carbonate Safe

Acts as a filler and provides supplemental calcium.

Maltodextrin used as processing aid Unknown

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$14$13$12$11$10 Mar 12 $12.32$11.84
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 Ultra B-100 Complex, 100 Tablets a good supplement?

Mason Natural Ultra B-100 Complex, 100 Tablets received a product quality score of 82/100 in GoodSupp's independent analysis, indicating strong overall quality. The product contains 13 active ingredients Of the 8 inactive ingredients, 6 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 Ultra B-100 Complex, 100 Tablets?

Mason Natural Ultra B-100 Complex, 100 Tablets contains 13 active ingredients: Vitamin B1 (as thiamine hydrochloride) (100 mg), Vitamin B2 (as riboflavin) (100 mg), Niacin (as niacinamide) (100 mg NE‡), Vitamin B6 (as pyridoxine hydrochloride) (100 mg), Folate (400 mcg folic acid) (667 mcg DFE†), Vitamin B12 (as cyanocobalamin) (100 mcg), and 7 more. Notable high-dose ingredients include Vitamin B1 at 8,333% DV, Vitamin B2 at 7,692% DV, Niacin at 625% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Mason Natural Ultra B-100 Complex, 100 Tablets safe to take?

Mason Natural Ultra B-100 Complex, 100 Tablets 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.

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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.