L-Lysine 500 mg®

Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.

This analysis is generated algorithmically from label data for educational reference only. It is not a product endorsement, ranking, or medical advice.

Allergen flags are parsed automatically from the official label's claims and statements. Always verify against the physical product label before use, especially if you have a severe allergy.

Serving Size: 1–2 Capsule(s) · 1 per day

Not Present

• 

  L-Lysine Source Naturals

  Herbs Direct4.7(1300)

  $15.03
• 

  Source Naturals L Proline L Lysine

  iHerb4.7(654)

  $8.55
• 

  Best Naturals L Lysine 500 mg 250 Tablets

  Target4.4(12)

  $21.99
• 

  Spring Valley L-Lysine 500 mg 250 Count

  Walmart4.6(276)

  $6.88
• 

  Source Naturals L-Lysine Free Form -Amino Acid Supplement Supports Energy Formation & Collagen* - 500 mg- 50 Tablets

  GoSupps.com4.7(1300)

  $24.99
• 

  Walgreens 500 mg L-Lysine Tablets

  Walgreens.com5.0(1)

  $11.99
• 

  Source Naturals L-Lysine Powder

  Instacart

  $7.39
• 

  Nutricost L-Lysine

  Target4.5(385)

  $21.95

Enter your city or ZIP code to find supplement & health stores in your area that may carry this product.

Showing representative supplement & health retailers — search above for stores in your area.

• The Vitamin Shoppe

  4.6 (51)

  Vitamin & supplements store

  2545 Vestal Pkwy E Ste 2, Vestal, NY 13850

  Directions(607) 729-4960

• GNC

  4.4 (162)

  Vitamin & supplements store

  4706 Vestal Pkwy E Ste 3, Vestal, NY 13850

  Directions(607) 729-2390

• Biometics International

  Vitamin & supplements store

  104 Ross Hill Rd, Conklin, NY 13748

  Directions(607) 349-2154

• Lifestream Nutritionals

  5.0 (1)

  Vitamin & supplements store

  300 Main St, Vestal, NY 13850

  Directions(607) 444-8015

• Wicked Awesome Keto

  5.0 (1)

  Store

  44 Service Rd, Kirkwood, NY 13795

  Directions(607) 778-0842

• DPS Nutrition

  4.7 (86)

  Vitamin & supplements store

  29 Kane Ln, Taylor, PA 18517

  Directions(800) 697-4969

• Your CBD Store - Vestal, NY

  5.0 (778)

  Vitamin & supplements store

  1901 Vestal Pkwy E Ste. 1b, Vestal, NY 13850

  Directions(607) 444-3048

• Gorilla Nutrition & Supplements

  5.0 (16)

  Vitamin & supplements store

  820 S Main St, Old Forge, PA 18518

  Directions(570) 451-1400

• Lysine: Sources, Metabolism, Physiological Importance, and Use as a Supplement

  M Holeček - International Journal of Molecular Sciences, 2025 - mdpi.com

  … Potential medical applications of the phenomenon of lysine–arginine antagonism are listed … and the potential usefulness of L-lysine supplements for both preventive and therapeutic …

  202517 citations

• L‐lysine: Its antagonism with L‐arginine in controlling viral infection. Narrative literature review

  MC Pedrazini, MH da Silva… - British journal of clinical …, 2022 - Wiley Online Library

  … in healthy subjects. Thus, the objective of this review is to discuss the potential benefit of balancing two amino acids, L-lysine … The protocol with lysine hydrochloride 500 mg/day fasting …

  202249 citations

• L-lysine dietary supplementation for childhood and adolescent growth: Promises and precautions

  R Gunarathne, X Guan, T Feng, Y Zhao, J Lu - Journal of Advanced …, 2025 - Elsevier

  … L-lysine (lysine) is an essential amino acid that plays a vital role in human nutrition. It serves … For decades, lysine supplements have been extensively used to promote the growth and …

  202555 citations

• Comprehensive safety assessment of ʟ-lysine supplementation from clinical studies: a systematic review

  K Hayamizu, I Oshima, M Nakano - The Journal of Nutrition, 2020 - Elsevier

  Background: Despite the widespread use of ʟ-lysine in dietary supplements, the safety information pertinent to excessive ʟ-lysine ingestion is limited and, to the best of our knowledge, …

  202028 citations

• Protein, lysine and vitamin D: critical role in muscle and bone health

  R Aggarwal, K Bains - Critical reviews in food science and nutrition, 2022 - Taylor & Francis

  … , 800 mg oral preparation of three different amino acids namely l-lysine, l-tryptophan and l-valine was randomly given to 45 women with osteoporosis as a daily supplement for three …

  2022108 citations

• Scientific Opinion on the substantiation of health claims related to L‐lysine and immune defence against herpes virus (ID 453), maintenance of normal blood LDL …

  EFSA Panel on Dietetic Products, Nutrition and … - EFSA …, 2011 - Wiley Online Library

  … health claims pursuant to Article 13 of Regulation (EC) No 1924/2006. This opinion addresses the scientific substantiation of health claims in relation to L-lysine … Article 13 health claims …

  20117 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2017-06-23. DSLD Label ID: 75366. This information is provided for educational reference only and is not medical advice. Always follow the product label and consult a doctor or pharmacist before use.