Zahler Magnesium Liquid, Unflavored, 4 fl oz (118 ml) supplement bottle
Zahler

Magnesium Liquid, Unflavored, 4 fl oz (118 ml)

What We Researched
2 active ingredients analyzed · 4 inactive ingredients decoded · 2 brand certifications checked · 3 retailers compared · Last updated: Mar 2026
83
Product Score Good
70
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Magnesium (as Magnesium Chloride) 230 mg 55%
Chloride (as Magnesium Chloride) 700 mg 30%
Bioavailability Excellent

Absorption Rating

  • Magnesium (as Magnesium Chloride) Good
  • Chloride (as Magnesium Chloride) Good
Other Ingredients Very Good

Fillers & Additives

  • Vegetable Glycerin
  • Purified Water
  • Potassium Sorbate (as Preservative)
  • Sodium benzoate (as preservative) Medium
Efficacy Fair

Dosage Analysis

  • Magnesium (as Magnesium Chloride) 230 mg Effective
  • Chloride (as Magnesium Chloride) 700 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Magnesium (as Magnesium Chloride) 230 mg 55%
Chloride (as Magnesium Chloride) 700 mg 30%

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Vegetable Glycerin Safe

Helps form softgel capsule shells and acts as a humectant.

Purified Water Safe

Dissolves and carries water-soluble ingredients.

Potassium Sorbate (as Preservative) Generally_safe

It is used to inhibit the growth of mold and bacteria, extending the shelf life of the supplement.

Sodium benzoate (as preservative) Unknown

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$44$39$33$27$22 Mar 12 $39.95$25.99$25.97
iHerb
Vitacost
GNC

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

Brand Trust Report
Zahler

Founded 2005 · Brooklyn, NY, USA · 140 products · zahlers.com/

Certifications

2 certifications
Fda Gmp Inspections Verified Source
Kosher Certified Verified Source

Transparency

3 claims
Third Party Testing Claim — Claimed Source
In House Testing — Verified Source

Violation History

4 incidents
Prop 65 Lead2023-08-28Source
Lawsuit Trademark Infringement2022Source
Prop 65 Lead2021-12-09Source
Fda Warning A retailer was cited for making drug claims about a Zahler product.2017-04-17Source
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Frequently Asked Questions
Is Zahler Magnesium Liquid, Unflavored a good supplement?

Zahler Magnesium Liquid, Unflavored, 4 fl oz (118 ml) received a product quality score of 83/100 in GoodSupp's independent analysis, indicating strong overall quality. The product contains 2 active ingredients with 30 servings per container. Of the 4 inactive ingredients, 2 are rated safe and 0 are flagged for review. The manufacturer, Zahler, holds a brand trust score of 70/100 with 2 verified certifications including Fda Gmp Inspections, Kosher Certified.

What are the ingredients in Zahler Magnesium Liquid, Unflavored?

Zahler Magnesium Liquid, Unflavored contains 2 active ingredients: Magnesium (as Magnesium Chloride) (230 mg), Chloride (as Magnesium Chloride) (700 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Zahler Magnesium Liquid, Unflavored safe to take?

Zahler Magnesium Liquid, Unflavored, 4 fl oz (118 ml) 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 Zahler a trustworthy supplement brand?

Zahler receives a brand trust score of 70/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 2005 and headquartered in Brooklyn, NY, USA, the company offers 140 products in their lineup. They hold 2 verified certifications including Fda Gmp Inspections, Kosher Certified. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Zahler has 4 historical regulatory incidents on record, which are factored into the trust score.

What is magnesium good for?

Magnesium Good For is a topic many supplement consumers ask about. In the context of dietary supplements, understanding magnesium good for helps you make more informed choices about what you put in your body. The quality and form of ingredients matters significantly — two products listing the same ingredient can differ dramatically in bioavailability and effectiveness. GoodSupp analyzes over 250,000 supplement products to help consumers understand exactly what's in their supplements and whether the formulation meets quality standards.

How much magnesium per day?

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 is zinc good for?

Zinc Good For is a topic many supplement consumers ask about. In the context of dietary supplements, understanding zinc good for helps you make more informed choices about what you put in your body. The quality and form of ingredients matters significantly — two products listing the same ingredient can differ dramatically in bioavailability and effectiveness. GoodSupp analyzes over 250,000 supplement products to help consumers understand exactly what's in their supplements and whether the formulation meets quality standards.

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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.