Carlson L-Lysine, 500 mg, 100 Capsules supplement bottle
Carlson

L-Lysine, 500 mg, 100 Capsules

What We Researched
1 active ingredient analyzed · 3 inactive ingredients decoded · 6 brand certifications checked · 2 retailers compared · Last updated: Mar 2026
75
Product Score Fair
84
Brand Score Good

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
L-Lysine (from L-lysine monohydrochloride) 500 mg †
Bioavailability Excellent

Absorption Rating

  • L-Lysine (from L-lysine monohydrochloride) Good
Other Ingredients Excellent

Fillers & Additives

  • Beef Gelatin Capsule
  • Magnesium Stearate (Veg.)
  • Cellulose
Efficacy Very Poor

Dosage Analysis

  • L-Lysine (from L-lysine monohydrochloride) 500 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
L-Lysine (from L-lysine monohydrochloride) 500 mg †

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Beef Gelatin Capsule Safe

It is used to encapsulate supplement ingredients for easy consumption.

Magnesium Stearate (Veg.) Generally_safe

It is used to prevent ingredients from sticking to manufacturing equipment.

Cellulose Safe

Provides bulk and structure in tablets and capsules.

Price Comparison

iHerb $9.32 $0.09 / serving
Best Price

Price History

Tracked across major retailers. Updated periodically.

$11$10$9$8$7 Mar 12 $9.00
iHerb

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

Brand Trust Report
Carlson

Founded 1965 · Arlington Heights, Illinois, United States · 378 products · carlsonlabs.com/

Certifications

6 certifications
Consumerlab Verified Source
Labdoor Verified Source
Non Gmo Project Verified Source
Fda Gmp Inspections Verified Source
Usda Organic Verified Source
Vegan Certified Verified Source

Transparency

3 claims
Third Party Testing Claim — Verified Source
Testing Lab Disclosure — Claimed Source

Violation History

4 incidents
Prop 65 Lead and lead compounds2024-02-05Source
Lawsuit Aloe Vera Gel products contained no detectable amount of aloe vera.2017Source
Prop 65 Retinol/Retinyl Esters2014-04-25Source
Lawsuit Patent infringement and unfair competition regarding the flavoring of gelatin capsules.2007Source
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Frequently Asked Questions
Is Carlson L-Lysine, 500 mg a good supplement?

Carlson L-Lysine, 500 mg, 100 Capsules received a product quality score of 75/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 1 active ingredients with 100 servings per container. Of the 3 inactive ingredients, 2 are rated safe and 0 are flagged for review. The manufacturer, Carlson, holds a brand trust score of 84/100 with 6 verified certifications including Consumerlab, Labdoor, Non Gmo Project, Fda Gmp Inspections.

What are the ingredients in Carlson L-Lysine, 500 mg?

Carlson L-Lysine, 500 mg contains 1 active ingredients: L-Lysine (from L-lysine monohydrochloride) (500 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Carlson L-Lysine, 500 mg safe to take?

Carlson L-Lysine, 500 mg, 100 Capsules 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 Carlson a trustworthy supplement brand?

Carlson receives a brand trust score of 84/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1965 and headquartered in Arlington Heights, Illinois, United States, the company offers 378 products in their lineup. They hold 6 verified certifications including Consumerlab, Labdoor, Non Gmo Project, Fda Gmp Inspections. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Carlson 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.