NOW Silica Complex supplement bottle
NOW

Silica Complex

What We Researched
6 active ingredients analyzed · 4 inactive ingredients decoded · 5 brand certifications checked · 1 retailer compared · Last updated: Mar 2026
72
Product Score Fair
89
Brand Score Good

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Calcium (as Calcium Citrate) 50 mg 4%
Zinc (as Zinc Amino Acid Chelate) 5 mg 45%
Manganese (as Manganese Amino Acid Chelate) 2 mg 87%
Horsetail extract 575 mg
Bentonite mineral powder 10 mg
Boron (as Boron Amino Acid Chelate) 1 mg
Bioavailability Fair

Absorption Rating

  • Calcium (as Calcium Citrate) Good
  • Zinc (as Zinc Amino Acid Chelate) Fair
  • Manganese (as Manganese Amino Acid Chelate) Good
  • Horsetail extract Fair
  • Bentonite mineral powder Poor
  • Boron (as Boron Amino Acid Chelate) Fair
Other Ingredients Excellent

Fillers & Additives

  • Cellulose
  • Stearic Acid
  • Croscarmellose Sodium
  • Vegetarian Coating
Efficacy Poor

Dosage Analysis

  • Calcium (as Calcium Citrate) 50 mg Under-dosed
  • Zinc (as Zinc Amino Acid Chelate) 5 mg Under-dosed
  • Manganese (as Manganese Amino Acid Chelate) 2 mg Effective
  • Horsetail extract 575 mg Effective
  • Bentonite mineral powder 10 mg Under-dosed
  • Boron (as Boron Amino Acid Chelate) 1 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Calcium (as Calcium Citrate) 50 mg 4%
Zinc (as Zinc Amino Acid Chelate) 5 mg 45%
Manganese (as Manganese Amino Acid Chelate) 2 mg 87%
Horsetail extract 575 mg
Bentonite mineral powder 10 mg
Boron (as Boron Amino Acid Chelate) 1 mg

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Cellulose Safe

Provides bulk and structure in tablets and capsules.

Stearic Acid Safe

Helps ingredients flow smoothly through manufacturing equipment.

Croscarmellose Sodium Safe

Helps tablets break apart and dissolve quickly in the stomach.

Vegetarian Coating Generally_safe

It is added to coat tablets or capsules.

Price Comparison

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

Brand Trust Report
NOW

Founded 1968 · Bloomingdale, Illinois, USA · 53 products · nowfoods.com

Certifications

5 certifications
Informed Sport Verified Source
Npa Gmp Verified Source
Fda Gmp Inspections Verified Source
Non Gmo Project Verified Source
Usda Organic Verified Source

Transparency

3 claims
Third Party Testing Claim — Verified Source
Testing Lab Disclosure — Claimed
In House Testing — Verified Source
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Frequently Asked Questions
Is NOW Silica Complex a good supplement?

NOW Silica Complex received a product quality score of 72/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 6 active ingredients Of the 4 inactive ingredients, 3 are rated safe and 0 are flagged for review. The manufacturer, NOW, holds a brand trust score of 89/100 with 5 verified certifications including Informed Sport, Npa Gmp, Fda Gmp Inspections, Non Gmo Project.

What are the ingredients in NOW Silica Complex?

NOW Silica Complex contains 6 active ingredients: Calcium (as Calcium Citrate) (50 mg), Zinc (as Zinc Amino Acid Chelate) (5 mg), Manganese (as Manganese Amino Acid Chelate) (2 mg), Horsetail extract (575 mg), Bentonite mineral powder (10 mg), Boron (as Boron Amino Acid Chelate) (1 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is NOW Silica Complex safe to take?

NOW Silica Complex 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 NOW a trustworthy supplement brand?

NOW receives a brand trust score of 89/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1968 and headquartered in Bloomingdale, Illinois, USA, the company offers 53 products in their lineup. They hold 5 verified certifications including Informed Sport, Npa Gmp, Fda Gmp Inspections, Non Gmo Project. 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.