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L-Lysine

product on market Powder NOW Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • Limited research evidence available for ingredients
B Label Compliance Grade
Label

Product Label

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

Label Data

552 mg
Serving Size
822
Servings
Amino acid/Protein
Product Type
0%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

435 mg
Market median: 500.0mg (159 products)
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Suggested Usage: Take 1/4 level teaspoon daily.

Warnings & Precautions

Caution: For adults only.

Consult physician if pregnant/nursing, taking medication, or have a medical condition.

Keep out of reach of children.

Do not eat freshness packet enclosed.

Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish, tree nut or sesame ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.

Formulation Notes

Lysine is an essential amino acid that must be obtained through the diet or through supplementation. Lysine is necessary for the production of all proteins in the body, and is required for the maintenance of the structural proteins collagen and elastin, which form all connective tissue such as skin, tendon, and bone. Lysine is also a precursor to carnitine, which is needed for fat metabolism and energy production. In addition, lysine may help to support a healthy immune system and proper cardiovascular function.

Natural color variation may occur in this product.

Pure Powder Supports collagen synthesis Healthy immune function

Non-GMO

Vegetarian/Vegan

Triangle K (Kosher)

Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish, tree nut or sesame ingredients.

NOW L-Lysine is a Pharmaceutical Grade essential amino acid.

Essential amino acid

Additional Information

Store in a cool, dry place after opening.

Amino acids Family owned since 1968.

This product is sold by weight not volume.

GMP Quality Assured

Triangle K (Kosher)

Metadata

Product Details

UPC / SKU7 33739 00240 2
DSLD Entry Date2024-07-25
Product TypeAmino acid/Protein
FormPowder
BrandNOW
DSLD ID314444
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.