L-Lysine bu Source Naturals is an essential amino acid that supports healthy metabolism, healthy connective tissues, and calcium absorbtion. It helps lower choletserol and improves overall health..
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L-Lysine | 500mg | 250 tabs*

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250 tabs

L-Lysine by Source Naturals is an effective supplement of an essential amino acid that works to improve the body's overall health. L-Lysine cannot be produced in the body, which means that it must be ingested through diet and supplementation. Amino acids are the building blocks of protein in the body and are required for healthy metabolism and energy production. L-Lysine helps the body produce carnitine, which is an important nutrient that causes the body to convert fatty acids into energy. It also helps to reduce dangerous cholesterol levels. L-Lysine works to help the body absorb calcium more efficiently while improving bone health. It also serves a valuable purpose in stimulating collagen production, which is crucial for the health of connective tissues such as skin, tendons, and cartilage.

Lysine deficiencies can be fairly rare as most people consume enough L-Lysine in their diet to remain healthy. However, there are certain groups of people who may suffer from a Lysine deficiency due to insufficient nutrition in their diet. Sometimes vegetarians may experience a Lysine deficiency as well as those whose diet largely consists of baked goods and cereals. Some athletes who regularly participate in vigorous exercise could experience a Lysine deficiency. A Lysine deficiency could present itself with the symptoms of fatigue, dizziness, nausea, loss of appetite, agitation, bloodshot eyes, reproductive disorders, anemia, and slow physical growth. L-Lysine improves healthy metabolism, lowers cholesterol, supports healthy connective tissues, and improves bone health. It can be taken to help relieve osteoporosis. It has also been shown effective in helping to treat and relieve mouth or genital lesions caused by the herpes virus. Always consult with your physician before taking any new medication or supplements.


  • Amino Acid Supports Metabolism
  • Lowers Cholesterol
  • Improves Bone Health
  • Supports Healthy Connective Tissue

Suggested use: 1 to 2 tablets daily.


L-Lysine (HCI)         500 mg

Other Ingredients: Sorbitol, stearic acid, modified cellulose gum and magnesium stearate.

Suitable for vegetarians. 

Contains no yeast, dairy, egg, gluten, soy, wheat, sugar, starch, salt, preservatives, or artificial color, flavor or fragrance.











By Deborah Johnson - Flag 
Comments? Question?
Updated Aug. 08, 2016, about 3 years ago

SKU: SN0140
UPC: 021078001409
Distributed or manufactured from Source Naturals. See more Source Naturals products.

*Not intended to diagnose or treat diseases or ailments, and is not reviewed by the FDA.

Uses & Indications.
  • Improves Energy Levels
  • L-Lysine Is Crucial To The Formation Of Collagen
  • Supports Health Metabolism
Ailments & Concerns.
  • Osteoporosis
  • Fatigue
  • Skin Lesions
  • Poor Metabolism
L-Lysine 1,000 mg (100 Tabs)
L-Lysine 1,000 mg (100 Tabs) NOW Foods

NOW Foods
L-Lysine 500 mg (100 Caps)
L-Lysine 500 mg (100 Caps) NOW Foods

NOW Foods
L-Lysine 500 mg (250 Caps)
L-Lysine 500 mg (250 Caps) NOW Foods

NOW Foods

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Questions and answers:

Asked on: March 27, 2013
Question: where in singapore can i purchase the above mentioned item? awaited yr prompt reply.
  • A: I am not aware of where you can purchase this supplement locally in Singapore however you can purchase this supplement online directly from as we do ship internationally. 

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lysine deficiency l connective, lowers improves bloodshot could, dangerous it supports rare
1. Statements and claims on have not been evaluated by the FDA and are not intended to treat or diagnose any ailment or disease.

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