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Bronson L-Lysine Extra Strength 1000 mg supplement bottle
Bronson

L-Lysine Extra Strength 1000 mg Review

What We Researched
1 active ingredient analyzed · 8 inactive ingredients decoded · 4 brand certifications checked · Page generated: Sep 2026
98
Product Score Excellent
89
Brand Score Good

Two independent scores — the product and the brand behind it, never blended into one number. See our methodology.

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
L-Lysine 1000 mg —
Bioavailability Excellent

Absorption Rating

  • L-Lysine Good
Other Ingredients Excellent

Fillers & Additives

  • Polyethylene Glycol Low
  • Dicalcium Phosphate
  • Microcrystalline Cellulose
  • Croscarmellose Sodium
  • Magnesium Stearate
  • Hypromellose
  • Stearic Acid
  • Silicon Dioxide
Efficacy Excellent

Dosage Analysis

  • L-Lysine 1000 mg Effective

Supplement Facts

Ingredient Amount % Daily Value
L-Lysine 1000 mg

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Polyethylene Glycol Caution

It is used as a binder, coating agent, or to improve solubility.

Dicalcium Phosphate Safe

Serves as both a filler and a supplemental source of calcium and phosphorus.

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.

Magnesium Stearate Safe

Prevents ingredients from sticking to manufacturing equipment during tableting.

Hypromellose Safe

Forms vegetarian capsule shells. Dissolves easily in the stomach.

Stearic Acid Safe

Helps ingredients flow smoothly through manufacturing equipment.

Silicon Dioxide Safe

Prevents clumping and ensures consistent dosing.

Brand Trust Report
Bronson

Founded 1960 · Hauppauge, NY, USA · 698 products · bronsonvitamins.com/

Certifications

4 certifications
Consumerlab Source available Primary evidence
Fda Gmp Inspections Source available Primary evidence
Usda Organic Source available Primary evidence
NSF Certified Supporting evidence unavailable

Transparency

3 claims
Third Party Testing Claim — Claimed Evidence available Evidence
In House Testing — Verified Evidence available Evidence

Violation History

6 incidents
Prop 65 Lead2024-08-25 Source available Primary source
Prop 65 Lead2024-08-25 Source available Primary source
Prop 65 Lead2013-01-22 Source available Primary source
Prop 65 Lead2012-03-08 Source available Primary source
Prop 65 Lead2012-03-08 Source available Primary source
Prop 65 Listed Chemical (not specified in snippet)2008-10-22 Source available Primary source
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Frequently Asked Questions
Is Bronson L-Lysine Extra Strength 1000 mg a good supplement?

Bronson L-Lysine Extra Strength 1000 mg received a product quality score of 98/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 1 active ingredients with 100 servings per container. Of the 8 inactive ingredients, 7 are rated safe and 1 ingredient is flagged for review. The manufacturer, Bronson, holds a brand trust score of 89/100.

What are the ingredients in Bronson L-Lysine Extra Strength 1000 mg?

Bronson L-Lysine Extra Strength 1000 mg contains 1 active ingredients: L-Lysine (1000 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Bronson L-Lysine Extra Strength 1000 mg safe to take?

GoodSupp reviewed the inactive-ingredient data available for Bronson L-Lysine Extra Strength 1000 mg. Of 8 inactive ingredients, 7 are rated safe. 1 ingredient is flagged for review: Polyethylene Glycol. 'Caution' doesn't mean dangerous — it indicates the ingredient has some considerations worth being aware of, such as potential sensitivities or ongoing research. This label analysis cannot determine whether the product is safe for a particular person, and source labels may change. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Bronson a trustworthy supplement brand?

Bronson receives a brand trust score of 89/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1960 and headquartered in Hauppauge, NY, USA, the company offers 698 products in their lineup. Note: Bronson has 6 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 — read our methodology. 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.