Brand: NOW

Tablet or PillOff Market
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Net Contents

100 Tablet(s)

Serving Size

1 Tablet(s)

Servings Per Container

Not specified

Supplement Form

Tablet or Pill

Bar Code (UPC/SKU)

7 33739 00113 9

Product Version

Not specified

Suggested Use

SUGGESTED USAGE: As a dietary supplement; take 1 tablet on an empty stomach 1 to 2 times daily; as needed. Consider taking this product in combination with NOW(R) L-Proline; Zinc; and AlliBiotic CF(TM).

Market Reference

$6.92 – $132.40· 40 listings
  • NOW L-Lysine

    Walmart4.8(9000)
    $6.92Lowest
  • L-Lysine 500 mg NOW

    NOW4.8(7300)
    $11.99
  • NOW L-Lysine 1000mg Tablets

    Village Vitamin Store4.8(9000)
    $11.24
  • Now Foods L-Lysine Powder

    iHerb4.9(1900)
    $15.92
  • NOW Foods L-Lysine Powder for Cats

    Walmart4.6(1400)
    $12.99
  • NOW Foods L-Lysine Powder

    NOW5.0(12)
    $25.99
  • (2 pack) NOW Supplements, L-Lysine (L-Lysine Hydrochloride) Powder, Supports Collagen Synthesis*, Amino Acid, 1-Pound, White

    Walmart - Fruitful Yield5.0(12)
    $33.18
  • NOW Pets L-Lysine for Cats Powder

    NOW Foods - Pet Health4.6(1400)
    $12.74

Where to Buy Locally

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Research & Studies

  • The metabolic roles, pharmacology, and toxicology of lysine.

    NW Flodin - Journal of the American College of Nutrition, 1997 - Taylor & Francis

    … L-Lysine was introduced in the United States on a small … roles of lysine supplements and their use without medical supervision, as … Many physicians are now placing PD patients on high…

    1997198 citations
  • Safety assessment of L-lysine oral intake: a systematic review

    K Hayamizu, I Oshima, Z Fukuda, Y Kuramochi… - Amino …, 2019 - search.proquest.com

    … In the present study, we evaluated the safety of l-lysine added … studies on oral ingestion of l-lysine. Ultimately, 71 studies … on the safety of lysine supplements used by healthy adults. …

    201931 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
  • Microbial production and applications of L-lysine

    AK Pandey, K Pandey, LK Singh - Innovations in Food Technology …, 2020 - Springer

    … L-lysine has a crucial role in providing health benefits from muscle building, maintenance of healthy blood vessels to assistance in calcium absorption. Recombinant DNA technology …

    202015 citations
  • Lysine requirement through the human life cycle

    D Tomé, C Bos - The Journal of nutrition, 2007 - Elsevier

    … L-Lysine is a basic amino acid characterized by the presence of … L-Lysine hydrochloride is used for cereal fortification for human … This estimate of lysine requirement in healthy women is …

    2007236 citations
  • L-lysine Benefits for Weight Loss

    C Maghinay, M Smith - thehcginstitute.com

    … health and elasticity of the skin. As a key component of collagen, L-lysine supports the formation of healthy … Also, some people use L-lysine supplements or L-lysine-containing skincare …

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2011-12-23. DSLD Label ID: 2829. 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.