Zahler Colloidal Silver Liquid, 100 ppm, 4 fl oz supplement bottle
Zahler

Colloidal Silver Liquid, 100 ppm, 4 fl oz

What We Researched
1 active ingredient analyzed · 1 inactive ingredient decoded · 2 brand certifications checked · 2 retailers compared · Last updated: Mar 2026
66
Product Score Fair
70
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Colloidal Silver (100 ppm) 500 mcg *
Bioavailability Very Poor

Absorption Rating

  • Colloidal Silver (100 ppm) Poor
Other Ingredients Excellent

Fillers & Additives

  • Purified Water
Efficacy N/A

Dosage Analysis

Dosage data not available for assessment.

Supplement Facts

Ingredient Amount % Daily Value
Colloidal Silver (100 ppm) 500 mcg *

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Purified Water Safe

Dissolves and carries water-soluble ingredients.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$28$27$26$25$24 Mar 12 $25.99
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
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 Colloidal Silver Liquid, 100 ppm a good supplement?

Zahler Colloidal Silver Liquid, 100 ppm, 4 fl oz received a product quality score of 66/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 1 active ingredients with 23 servings per container. All 1 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives. 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 Colloidal Silver Liquid, 100 ppm?

Zahler Colloidal Silver Liquid, 100 ppm contains 1 active ingredients: Colloidal Silver (100 ppm) (500 mcg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Zahler Colloidal Silver Liquid, 100 ppm safe to take?

Zahler Colloidal Silver Liquid, 100 ppm, 4 fl oz has been analyzed for ingredient safety across all its components. All 1 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 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.

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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.