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L-Lysine
Healthy Immune Balance*
L-Lysine is an essential amino acid that helps to promote normal tissue repair, healthy energy production, proper fatty acid metabolism, and a healthy immune response.*
Contains 1.5 g of the free form lysine in each 2-capsule serving.
• Supports a healthy immune response*
• Helpful for individuals who may be consuming a diet low in protein*
• May support energy production*
• Supports bone, muscle, and cartilage*
• Promotes healthy growth and tissue repair*
Recommended Use: Take 2 capsules per day or as directed by your health-care practitioner.
Lysine is an essential amino acid
Lysine is an essential amino acid that the body cannot produce and must be obtained through diet or supplementation. It is abundant in red meat and other protein-rich foods, but individuals with dietary restrictions, such as vegetarians or vegans, may struggle to get enough. Inadequate lysine intake can lead to the breakdown of body proteins, including muscle. Because the body does not store excess amino acids, essential amino acids like lysine should be consumed daily for optimal health.*
Helpful Product Resources
Compare L-Lysine with all Designs for Health products, review research and education resources, or visit the product and ordering FAQs for additional support.
L-Lysine
1.5 g Free-Form L-Lysine per Two-Capsule Serving for Immune Support, Collagen Formation, Tissue Repair, Antibody Production, and Energy Metabolism*
Key Performance Benefits
- Supports a healthy immune response*
- Supports bone, muscle, and cartilage health*
- Promotes healthy growth and tissue repair*
- Supports production of antibodies, hormones, and enzymes*
- Supports energy production through L-carnitine synthesis*
What This Product Is
L-Lysine provides 1.5 grams of the amino acid lysine per two-capsule serving in free form, meaning it is immediately available for absorption and can be put to metabolic use more readily and rapidly than the amino acids contained in dietary protein. Lysine is an essential amino acid, meaning it cannot be made by the body and must be obtained through diet or supplementation.*
Lysine is necessary for healthy growth and tissue repair, and it serves a role in the normal production of antibodies, hormones, and enzymes. It is involved in the formation of collagen, a substance critical for bones and connective tissues including skin, tendons, and cartilage. Lysine is also a precursor of L-carnitine, an amino acid derivative needed to convert fatty acids into energy. Unlike fats and carbohydrates, the human body does not store excess amino acids for later use, so essential amino acids should be consumed every day for optimal health.*
Mechanism of Action
Collagen Formation and Tissue Repair
Lysine is involved in the formation of collagen, a substance critical for bones and connective tissues including skin, tendons, and cartilage. It is necessary for healthy growth and tissue repair throughout the body.*
Immune Support Through Antibody Production
Lysine is involved in the production of antibodies, and a suboptimal level of lysine can affect the immune system. Lysine supplementation may help support a healthy immune response by ensuring adequate substrate for antibody synthesis.*
Energy Production via L-Carnitine Synthesis
Lysine is a precursor of L-carnitine, an amino acid derivative needed to convert fatty acids into energy. When L-carnitine levels are low, supplementation with lysine can help increase the body’s production of L-carnitine, assisting with fatty acids being used more effectively for energy production.*
Applications
- Individuals seeking essential amino acid support for immune function*
- Those looking for collagen formation and connective tissue support*
- Athletes and vegetarians who may have difficulty achieving proper lysine levels*
- Individuals wanting tissue repair and growth support*
- Those seeking energy production support through L-carnitine synthesis*
Key Ingredients / Formula Highlights
L-Lysine (1.5 g per two-capsule serving)
Free-form essential amino acid for immediate absorption and rapid metabolic use. Supports collagen formation, immune function, tissue repair, and energy production via L-carnitine synthesis.*
Free-Form Delivery
Immediately available for absorption without requiring protein digestion. Essential amino acid that must be consumed daily as the body does not store excess amino acids.*
Suggested Use
Take 2 capsules per day, or as directed by your health-care practitioner.
Product Questions
How does L-Lysine compare to L-Glutamine for amino acid supplementation?
L-Lysine is an essential amino acid (the body cannot produce it) focused on collagen formation, immune support through antibody production, and energy metabolism via L-carnitine synthesis. L-Glutamine is the body’s most abundant free-form amino acid focused on gut integrity, immune cell fuel, and muscle recovery. They serve complementary but distinct roles in amino acid supplementation.*
Why might athletes and vegetarians need lysine supplementation?
Lysine is abundantly found in red meat and other dietary protein sources. Athletes may have increased needs due to tissue repair demands, while vegetarians may have difficulty achieving proper lysine levels from plant-based diets alone. Since the body does not store excess amino acids, daily intake is important for optimal health.*
Who may benefit most from L-Lysine?
Individuals with dietary restrictions that may limit lysine intake, athletes seeking tissue repair and collagen support, those wanting immune system support through antibody production, and anyone looking for energy production support through L-carnitine synthesis.*
Practitioner Reference
L-Lysine is positioned within the Designs for Health Foundational Health category. Available as LYS120 (120 capsules). This product is intended for use under the guidance of a licensed health-care practitioner.