Source Naturals Ultra-Mag™, 360 Vegan Capsules supplement bottle
Source Naturals

Ultra-Mag™, 360 Vegan Capsules

What We Researched
3 active ingredients analyzed · 3 inactive ingredients decoded · 1 brand certification checked · 1 retailer compared · Last updated: Mar 2026
90
Product Score Excellent
66
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin B-6 (as pyridoxine HCI) 30 mg 1,765%
Magnesium (as magnesium citrate, succinic acid complex, glycinate, malate, and taurine complex) 420 mg 100%
Bioavailability Very Good

Absorption Rating

  • Vitamin B-6 (as pyridoxine HCI) Fair
  • Magnesium (as magnesium citrate, succinic acid complex, glycinate, malate, and taurine complex) Good
Other Ingredients Excellent

Fillers & Additives

  • Hydroxypropyl Methylcellulose (Capsule)
  • Silica
  • Magnesium Stearate
Efficacy Very Good

Dosage Analysis

  • Vitamin B-6 (as pyridoxine HCI) 30 mg Effective
  • Magnesium (as magnesium citrate, succinic acid complex, glycinate, malate, and taurine complex) 420 mg High

Supplement Facts

Ingredient Amount % Daily Value
Total Carbohydrate 1 g <1%*
Vitamin B-6 (as pyridoxine HCI) 30 mg 1,765%
Magnesium (as magnesium citrate, succinic acid complex, glycinate, malate, and taurine complex) 420 mg 100%

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Hydroxypropyl Methylcellulose (Capsule) Safe

It is used to encapsulate supplement ingredients.

Silica Safe

Prevents ingredients from clumping and improves powder flow.

Magnesium Stearate Safe

Prevents ingredients from sticking to manufacturing equipment during tableting.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$33$32$31$30$29 Mar 12 $30.79
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
Source Naturals

Founded 1982 · Scotts Valley, CA, USA · 837 products · sourcenaturals.com/

Certifications

1 certification
Fda Gmp Inspections Verified Source

Transparency

2 claims
Third Party Testing Claim — Claimed Source
In House Testing — Verified Source
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Frequently Asked Questions
Is Source Naturals Ultra-Mag™, 360 Vegan Capsules a good supplement?

Source Naturals Ultra-Mag™, 360 Vegan Capsules received a product quality score of 90/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 3 active ingredients with 120 servings per container. All 3 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives. The manufacturer, Source Naturals, holds a brand trust score of 66/100 with 1 verified certifications including Fda Gmp Inspections.

What are the ingredients in Source Naturals Ultra-Mag™, 360 Vegan Capsules?

Source Naturals Ultra-Mag™, 360 Vegan Capsules contains 3 active ingredients: Total Carbohydrate (1 g), Vitamin B-6 (as pyridoxine HCI) (30 mg), Magnesium (as magnesium citrate, succinic acid complex, glycinate, malate, and taurine complex) (420 mg). Notable high-dose ingredients include Vitamin B-6 at 1,765% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Source Naturals Ultra-Mag™, 360 Vegan Capsules safe to take?

Source Naturals Ultra-Mag™, 360 Vegan Capsules has been analyzed for ingredient safety across all its components. All 3 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 Source Naturals a trustworthy supplement brand?

Source Naturals receives a brand trust score of 66/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1982 and headquartered in Scotts Valley, CA, USA, the company offers 837 products in their lineup. They hold 1 verified certifications including Fda Gmp Inspections. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. No regulatory violations or FDA warning letters were found in our research.

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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.