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Health Benefits and Uses of
L-Ornithine HCL

Exercise Support


L-Ornithine HCL Background and Benefits

l-ornithine-hcl L-ornithine is an amino acid that is primarily used in the urea cycle, which eliminates excess nitrogen from the body. It isn’t an essential amino acid in humans, meaning that it can be synthesized in the body. Ammonia (NH3) is a waste product of cellular metabolism, which becomes toxic if allowed to accumulate. L-ornithine is a catalyst in the process that converts ammonia into urea, which can be eliminated through urine.

The liver uses the enzyme arginase and the amino acid L-arginine to synthesize urea and L-ornithine as part of the urea cycle. E. coli in the intestines also synthesizes L-ornithine from the amino acid L-glutamate. L-ornithine serves as the precursor for various other important compounds such as glutamic acid, proline and citrulline. The highest concentrations of L-ornithine are found in connective tissue such as the skin.

Animal protein is the best dietary source of L-ornithine, like other amino acids. This primarily includes meat, eggs and dairy products. L-ornithine is also present in nuts such as coconut, peanuts and walnuts. Grains such as oats and wheat contain L-ornithine, as do beans such as carob and soybeans. L-ornithine is often prepared for use in health supplements as L-ornithine HCL, which is the hydrochloride salt of L-ornithine.

Uses of L-Ornithine HCL

The primary use of L-ornithine in health supplements is to support athletic performance. It is also used to support liver functioning, healthy wound recovery and stress management.

Anxiety management


Studies indicate that L-ornithine may help reduce anxiety in animals. This benefit may be related to the ability of L-ornithine to cross the blood-brain barrier.

Liver support


L-ornithine may support liver functioning by managing ammonia levels. This use is often combined with L-aspartate.

Body Diagram

Supports skin repair


Animal studies show that L-ornithine may support healthy wound recovery. This effect is generally attributed to L-ornithine’s role in collagen production.

Exercise support


Early research shows that oral supplements containing L-ornithine can support athletic performance, including strength, power and speed. This use of L-ornithine is especially common among male weightlifters.

Signs You May Need L-Ornithine HCL

L-ornithine is normally biosynthesized in sufficient quantities, except under circumstances of excessive metabolic demand. Conditions that may result in a deficiency of L-ornithine include chronic disease, severe injury, pregnancy and rapid growth. Organ insufficiencies and problems with the urea cycle may also result in a need for supplemental L-ornithine. Bodybuilders and weightlifters may also benefit from an increase in l-ornithine, especially men. Common signs of an L-ornithine deficiency primarily include chronic problems with liver function.


Products containing L-Ornithine HCL

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Other Ingredients That May Be Of Interest

L-arginine - L-arginine is a proteinogenic amino acid that plays an important role in wound recovery and ammonia elimination. It is also used to support the production of hormones.

Vitamin C - Vitamin C is also known by other names such as L-ascorbic acid or just ascorbate. It is an essential nutrient for humans that is used in many enzymatic reactions and is especially important in the production of collagen.

Synonyms and Similar Forms of L-Ornithine HCL

L-ornithine, L ornithine, ornithine