L-Arginine is a crystalline free-form amino acid.  It is an important factor in muscle metabolism and works to transport store and excrete nitrogen.  It is a precursor for nitric oxide which promotes increased circulation by relaxing blood vessels..
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L-Arginine (1600 mg 3.53 oz)*

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Source Naturals

L-Arginine (1600 mg 3.53 oz)

L-Arginine is a crystalline free-form amino acid. It is an important factor in muscle metabolism and works to transport store and excrete nitrogen. It is a precursor for nitric oxide which promotes increased circulation by relaxing blood vessels.

L-Arginine is an amino acid that is present in proteins. It helps to detoxify the ammonia in the body which is formed during the breakdown of muscle. It also helps to reduce catabolism by maintaining nitrogen balance

Suggested Use:1/2 teaspoon daily between meals.

Supplement Facts
Serving Size:1/2 Teaspoon
Calories 5  
L-Arginine 1.6 g 0


Other Ingredients:Suitable for vegetarians.

Notes:If you are pregnant, may become pregnant, or breastfeeding, consult your health care professional before using this product.
Do not use if either tamper-evident seal is broken or missing. Keep out of the reach of children.

By Gary Olson - Flag 
Comments? Question?
Updated Mar. 13, 2017, about 3 years ago

SKU: SN0103
UPC: 021078001034
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.
  • Increasing Energy
  • Stimulating Growth Hormone
  • Enhancing Thymus Gland
Ailments & Concerns.
  • Poor Muscle Tone
  • Fatigue
  • Cold & Flu
  • Bone Fractures
L-Arginine (1000 mg-100 tabs)*
L-Arginine (1000 mg-100 tabs)* Source Naturals

Source Naturals
L-Arginine (120 Caps)
L-Arginine (120 Caps) Natural Sport

Natural Sport

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Questions and answers:

Asked on: April 16, 2013
Question: Hi, Can you kindly tell me if there are any other ingredients in this supplement - in particular any GMOs. Thank you
  • A: Unfortunately this supplement is not labeled as GMO-free.  The only other ingredients in this supplement other than L-Arginine are these inactive ingredients:gelatin (capsule), dibasic calcium phosphate, colloidal silicon dioxide, and magnesium stearate.
Asked on: August 29, 2013
Question: i want to know what kind of l-arginine is this made from(as pyroglutamate or as HCI)?And point me to l-arginine pyroglutamate if this one is as l-arginine HCI. Please come back with the correct answer. Thank you.
  • A: This particular L-Arginine supplement comes from HCL. This same manufacturer does have one that comes from pyroglutamate. You can view this one below.

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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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