Ingredient

L-Arginine

L-arginine is an amino acid ingredient used for improving blood circulation and supporting liver function.

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173
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172
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146
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27

MFDS ingredient code M103077

What does it do?

L-arginine is an important amino acid in the human body, primarily used for improving blood circulation and assisting liver function. This ingredient is included in medications related to vasodilation and liver function improvement.

L-arginine produces a substance called nitric oxide in the body that dilates blood vessels and promotes smooth blood flow. It also helps in detoxification in the liver, thereby supporting liver function.

Commonly used for

Approved uses differ by product. Check each product's information for its actual use.

Good to know

Unlike other amino acids, L-arginine serves as a precursor for the generation of nitric oxide, which directly engages in vasodilation. This characteristic distinguishes it from other ingredients specifically focused on improving blood circulation.

Medicines containing this ingredient

Even with the same ingredient, strength, dosage form and how it is taken can differ.

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173 total

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Even with the same ingredient, dosage and approved uses can differ by strength, dosage form and combined ingredients. Check each product's information before taking it.

Combined ingredients

Ingredients used together with this ingredient in combination products.

Questions about this ingredient

  • QI'm on blood pressure medication; can I add arginine?

    L-arginine is involved in vasodilation, so individuals taking antihypertensive medication should confirm before adding it. Please show the medications you are taking along with the product and consult with the prescribing doctor or pharmacist.

    Answers 1 · 2026.09.14

  • QHow does arginine help with blood circulation?

    L-arginine serves as a precursor to a substance called nitric oxide in the body, which dilates blood vessels and improves blood flow. For these reasons, it is used in products intended to enhance circulation and is also described to assist with detoxification in the liver.

    Answers 1 · 2026.09.14

For anything that needs medical judgment, consult a doctor or pharmacist.

SourceKorea Ministry of Food and Drug Safety (Drug Safety Korea)

This drug information is based on data provided by the Korea Ministry of Food and Drug Safety.
Consult a doctor or pharmacist for accurate dosage, administration, and usage instructions.