Nature Made L-Lysine, 1000 mg, 60 Tablets supplement bottle
Nature Made

L-Lysine, 1000 mg, 60 Tablets

What We Researched
1 active ingredient analyzed · 9 inactive ingredients decoded · 4 brand certifications checked · 3 retailers compared · Last updated: Mar 2026
98
Product Score Excellent
86
Brand Score Good

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
L-Lysine 1000 mg *
Bioavailability Excellent

Absorption Rating

  • L-Lysine Good
Other Ingredients Excellent

Fillers & Additives

  • L-lysine monohydrochloride
  • Cellulose Gel
  • Crospovidone
  • Stearic Acid
  • Silicon Dioxide
  • Croscarmellose Sodium
  • Hydroxypropyl Methylcellulose
  • Magnesium Stearate
  • Polyethylene Glycol Low
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.

L-lysine monohydrochloride Unknown
Cellulose Gel Generally_safe

It is used as a thickening agent to improve the texture of supplements.

Crospovidone Generally_safe

It is used as a binder to help tablets or capsules disintegrate.

Stearic Acid Safe

Helps ingredients flow smoothly through manufacturing equipment.

Silicon Dioxide Safe

Prevents clumping and ensures consistent dosing.

Croscarmellose Sodium Safe

Helps tablets break apart and dissolve quickly in the stomach.

Hydroxypropyl Methylcellulose Safe

It is used as a coating for tablets and capsules.

Magnesium Stearate Safe

Prevents ingredients from sticking to manufacturing equipment during tableting.

Polyethylene Glycol Caution

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

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$10$9$8$7$6 Mar 12 $7.59
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
Nature Made

Founded 1971 · West Hills, California, USA · 161 products · naturemade.com

Certifications

4 certifications
Consumerlab Verified Source
Labdoor Verified Source
Usp Verified Verified Source
Fda Gmp Inspections Verified Source

Transparency

4 claims
Third Party Testing Claim — Verified Source
Coa Availability — Claimed Source
In House Testing — Verified Source

Violation History

2 incidents
Lawsuit Presence of toxic plastic chemicals in prenatal multivitamins.2025Source
Recall Specific lots of Nature Made Adult Gummies Multi, Multi + Omega-3, Multi for Her plus Omega-3s, and Super B Complex w/C & Folic Acid2016-06-15Source
Related Supplements
Frequently Asked Questions
Is Nature Made L-Lysine, 1000 mg a good supplement?

Nature Made L-Lysine, 1000 mg, 60 Tablets 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 60 servings per container. Of the 9 inactive ingredients, 5 are rated safe and 1 are flagged for review. The manufacturer, Nature Made, holds a brand trust score of 86/100 with 4 verified certifications including Consumerlab, Labdoor, Usp Verified, Fda Gmp Inspections.

What are the ingredients in Nature Made L-Lysine, 1000 mg?

Nature Made L-Lysine, 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 Nature Made L-Lysine, 1000 mg safe to take?

Nature Made L-Lysine, 1000 mg, 60 Tablets has been analyzed for ingredient safety across all its components. Of 9 inactive ingredients, 5 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 Nature Made a trustworthy supplement brand?

Nature Made receives a brand trust score of 86/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1971 and headquartered in West Hills, California, USA, the company offers 161 products in their lineup. They hold 4 verified certifications including Consumerlab, Labdoor, Usp Verified, Fda Gmp Inspections. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Nature Made has 2 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. 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.