ProveIt Supplements

Independent, evidence-based supplement analysis.

✓ Not Sponsored

✓ No Paid Reviews

✓ Science-Based

Company

  • About Us
  • Our Methodology
  • Contact
  • Blog
  • Authors
  • Partners

Legal

  • Privacy Policy
  • Terms of Service
  • Medical Disclaimer
  • Affiliate Disclosure

Resources

  • All Categories
  • Ingredient Database
  • Browse Supplements
  • FAQ

© 2026 ProveIt Supplements. All rights reserved.

Medical Disclaimer: The information provided is for educational purposes only and is not intended as medical advice. Always consult with a qualified healthcare professional before starting any supplement regimen.

Prove It
Browse SupplementsBlogAuthorsAboutMethodologyFAQ
Get Your Personalized Supplement StackSupplement Stack Quiz
Menu
HomeBrowse SupplementsBlogAuthorsAboutMethodologyFAQ
L-Lysine 500 mg

L-Lysine 500 mg

NOW

#Other
75
Safety80
Efficacy70
Transparency90
Based on Examine, Wikipedia, and 23 other sources

Overview

This L-Lysine supplement provides an essential amino acid that is critical for several bodily functions, including protein synthesis and collagen formation. While it demonstrates promise for managing HSV outbreaks and supporting bone health, the efficacy of these benefits varies across research. The supplement is generally well-absorbed, but its effectiveness is not consistently supported for all of the claimed benefits, and the dosage may need to be optimized for certain purposes.

The Good

Supports essential protein synthesis

Helps reduce HSV outbreaks

Promotes collagen production crucial for skin health

The Bad

Potential gastrointestinal discomfort with high doses

May interact with calcium-related medications

Not recommended for those with existing renal issues

Is it for you?

Best For: Individuals seeking immune support, those prone to cold sores, and vegetarians/vegans

Skip If: You are pregnant, nursing, or have a pre-existing medical condition without consulting a healthcare professional

Ingredients Analysis

L-Lysine

500 mg

L-Lysine Hydrochloride

637 mg

How to Use

Take 1 capsule 1 to 3 times daily, preferably between meals.

Frequency:

Daily

Best Time:

Anytime

When:

Between meals or with food

Who Should Use This

Best For:

Individuals seeking immune support, those prone to cold sores, and vegetarians/vegans