Double Strength L-Lysine 1000 mg

product on market Tablet or Pill NOW 🟢 Safety: 100/100
Brand: NOW
🟢 100/100

This product looks safe

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

Product Label

Label for Double Strength L-Lysine 1000 mg
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Label Data

1 Tablet(s) Serving Size
250 Servings
Amino acid/Protein Product Type
0% Evidence Coverage

Supplement Facts — Evidence Check

1 Gram(s)
📊 Market median: 500.0mg (159 products)
Median 500.0mg This product: 1mg

Other Ingredients

Microcrystalline Cellulose Silicon Dioxide Stearic Acid Vegetarian Coating Croscarmellose Sodium Magnesium Stearate

Label Claims — Verification

❓ Nutrient
❓ All Other
❓ Structure/Function
All Other (100% of products) Structure/Function (90% of products) Nutrient (73% of products)

Target Groups

Vegan Vegetarian Adult (18 - 50 Years) Kosher Halal Gluten Free Dairy Free

Product Information

📋 Directions for Use

Suggested Usage: Take 1 tablet 1 to 2 times daily.

⚠️ Warnings & Precautions

Caution: For adults only. Keep out of reach of children.

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

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

Essential amino acid

Supports Collagen Synthesis Healthy Immune Function

Non-GMO

Triangle K (Kosher)

Vegetarian/Vegan

Made and quality tested in the USA with globally sourced ingredients.

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

This product has twice the L-Lysine (1,000 mg per tablet) as in our regular strength product (500 mg per tablet).

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

Crescent H (Halal)

Additional Information

Store in a cool, dry place after opening.

Triangle K (Kosher)

Amino Acids Family owned since 1968.

Crescent H (Halal) GMP Quality Assured

Product Details

UPC / SKU 7 33739 00123 8
DSLD Entry Date 2024-06-20
Product Type Amino acid/Protein
Form Tablet or Pill
Brand NOW
DSLD ID 314283
Data Updated 2026-04-11

Research Evidence

3 Research Sources
74 Avg Quality Score
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 Cochrane
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 Cochrane
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 Cochrane
View all evidence for Lysine →

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