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 · Last updated: Aug 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 (as L-Lysine Hydrochloride) 1000 mg
Bioavailability Excellent

Absorption Rating

  • L-Lysine (as L-Lysine Hydrochloride) Good
Other Ingredients Excellent

Fillers & Additives

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

Dosage Analysis

  • L-Lysine (as L-Lysine Hydrochloride) 1000 mg Effective

Supplement Facts

Ingredient Amount % Daily Value
L-Lysine (as L-Lysine Hydrochloride) 1000 mg

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

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.

Stearic Acid Safe

Helps ingredients flow smoothly through manufacturing equipment.

Dicalcium Phosphate Safe

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

Magnesium Stearate Safe

Prevents ingredients from sticking to manufacturing equipment during tableting.

Silicon Dioxide Safe

Prevents clumping and ensures consistent dosing.

Hydroxypropyl Methylcellulose Safe

It is used as a coating for tablets and capsules.

Polyethylene Glycol Caution

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

Brand Trust Report
Bronson

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

Certifications

4 certifications
Consumerlab Verified Source
Fda Gmp Inspections Verified Source
Usda Organic Verified Source
NSF Certified Verified

Transparency

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

Violation History

6 incidents
Prop 65 Lead2024-08-25Source
Prop 65 Lead2024-08-25Source
Prop 65 Lead2013-01-22Source
Prop 65 Lead2012-03-08Source
Prop 65 Lead2012-03-08Source
Prop 65 Listed Chemical (not specified in snippet)2008-10-22Source
Related Supplements
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 250 servings per container. Of the 8 inactive ingredients, 7 are rated safe and 1 are flagged for review. The manufacturer, Bronson, holds a brand trust score of 89/100 with 4 verified certifications including Consumerlab, Fda Gmp Inspections, Usda Organic, NSF Certified.

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 (as L-Lysine Hydrochloride) (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?

Bronson L-Lysine Extra Strength 1000 mg has been analyzed for ingredient safety across all its components. 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. 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. They hold 4 verified certifications including Consumerlab, Fda Gmp Inspections, Usda Organic, NSF Certified. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Bronson has 6 historical regulatory incidents on record, which are factored into the trust score.

Scan Any Supplement Instantly

Download GoodSupp to scan barcodes, check ingredient safety, and find the best supplements for your needs.

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.