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L-Lysine

product on market Capsule Nature's Sunshine Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 100% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · grounded in 1 source · methodology

L-Lysine Hydrochloride is an essential amino acid used to support protein synthesis and calcium absorption. Research provides moderate evidence for its effectiveness in reducing the frequency of herpes simplex outbreaks. Clinical data suggests the ingredient is generally safe for most users.

AI-generated summary based on research evidence. Not medical advice.

Label

Product Label

Label for L-Lysine
Open Full PDF View on NIH DSLD →
Details

Label Data

1 Capsule(s)
Serving Size
100
Servings
Amino acid/Protein
Product Type
100%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Market median: 4002.0mg (1 products) 21 studies (A:0, B:2)

Other Ingredients

Capsule Cellulose Magnesium Stearate Silicon Dioxide
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Recommended Use: Take 1 capsule with a meal three times daily.

Warnings & Precautions

Do not use if inner seal is missing or damaged.

Formulation Notes

Homeostasis, structural, and immune system support.

An essential amino acid, L-Lysine is not produced by the body. Therefore, it is an essential part of dietary intake and is required to form protein and maintain good health.

Ko Pareve (Kosher)

Collagen formation support Contributes to metabolic homeostasis

Guaranteed pure

Additional Information

Bottle made from 100% post consumer recycled material. We are committed to you and our planet. Scan to learn more.

Ko Pareve (Kosher)

New look! Same great product

Metadata

Product Details

UPC / SKU0 99904 01631 6
DSLD Entry Date2022-10-24
Product TypeAmino acid/Protein
FormCapsule
BrandNature's Sunshine
DSLD ID278141
Data Updated2026-04-11
Research

Research Evidence

3
Research Sources
74
Avg Quality
3
Meta Analysis
A Antifibrinolytics (lysine analogues) for the prevention of bleeding in people with haematological disorders
Meta Analysis The Cochrane database of systematic reviews 2026 PubMed DOI
B Antifibrinolytics (lysine analogues) for the prevention of bleeding in people with haematological disorders
Meta Analysis The Cochrane database of systematic reviews 2016 PubMed DOI
B Antifibrinolytics (lysine analogues) for the prevention of bleeding in patients with haematological disorders
Meta Analysis The Cochrane database of systematic reviews 2013 PubMed DOI
View all evidence for Lysine →
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.