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Arginine Ornithine Powder

Net Wt. 150 grams (0.33 lb. or 5.29 oz.)
Item# 00038


Arginine Ornithine Powder

Promotes muscle health & recovery

Net Wt. 150 grams (0.33 lb. or 5.29 oz.)
Item# 00038


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  • Arginine Ornithine Powder
  • Net Wt. 150 grams (0.33 lb. or 5.29 oz.)
  • Item Catalog Number: 00038

L-arginine is a semi-essential amino acid involved in numerous areas of human biochemistry, including ammonia detoxification, hormone secretion, and immune modulation. Arginine is also well known as a precursor to nitric oxide (NO), a key component of endothelial-derived relaxing factor, an endogenous messenger molecule involved in a variety of endothelium-dependent physiological effects in the cardiovascular system.1,2

L-ornithine is a metabolite of arginine in the body, formed as a byproduct of the action of the arginase enzyme on arginine.3,4 L-arginine is required for the body to synthesize nitric oxide,5,6 which enables the arterial system to retain its youthful elasticity. Nitric oxide also helps to produce an endothelial-derived relaxing factor, which is needed by the arterial system to expand and contract with each heartbeat.7-16

L-arginine may also help maintain the health of the immune system.17-20

L-arginine is a key building block to maintaining healthy tissue and bone. L-ornithine may also be used for this purpose.21-32

Some studies suggest that either independently or combined, arginine and ornithine appear to stimulate growth hormone (GH) based on the increase in strength and muscle mass that was produced while intensely working out.33-35 Other research evidences ornithine’s ability to stimulate GH release.36-41 Another study showed a combination of ornithine with acetyl-L-carnitine enhanced the GH release feedback loop.42 However, studies suggest that low doses of L-arginine and/or L-ornithine are unlikely to effect GH release. A minimum dose of L-arginine to promote GH release is probably 5 to 9 grams.34

These statements have not been evaluated by the Food and Drug Administration.
These products are not intended to diagnose, treat, cure, or prevent any disease.

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  2. Biomed Pharmacother. 2002 Nov;56(9):439-45. 
  3. Zh Evol Biokhim Fiziol. 2008 May-Jun;44(3):234-40.
  4. Am J Obstet Gynecol. 1996 Feb;174(2):779-82.
  5. Curr Vasc Pharmacol. 2011 Nov 21. [Epub ahead of print]
  6. Biochem Biophys Res Commun. 2011 Nov 4;414(4):660-3.
  7. Aktuelle Urol. 2009 Aug;40(4):235-41.
  8. Biorheology. 2009;46(2):107-19.
  9. Bull Mem Acad R Med Belg. 2006;161(10-12):529-36; discussion 536-7.
  10. Can J Physiol Pharmacol. 2005 Aug-Sep;83(8-9):681-700.
  11. J Thorac Cardiovasc Surg. 1995 Aug;110(2):302-14.
  12. Biochem Biophys Res Commun. 1988 Jun 30;153(3):1251-6.
  13. J Nutr. 2000 Nov;130(11):2626-9.
  14. Clin Cardiol. 2000 Mar;23(3):205-10.
  15. Hypertens Pregnancy. 2007;26(1):121-30., 
  16. Am J Physiol Endocrinol Metab. 2006 Nov;291(5):E906-12.
  17. Curr Opin Clin Nutr Metab Care. 2007 Jan;10(1):80-7.
  18. Amino Acids. 2009 Jul;37(2):323-31.
  19. Nutrition. 2006 Jul-Aug;22(7-8):705-12.
  20. Curr Opin Clin Nutr Metab Care. 2004 Jan;7(1):45-51.
  21. Curr Opin Clin Nutr Metab Care. 2003 Mar;6(2):223-8. 
  22. Gut. 1994 Jan;35(1 Suppl):S42-5.
  23. Surg Clin North Am. 2003 Jun;83(3):571-96.
  24. Clin Nutr. 1993 Feb;12(1):61-2.
  25. Isr Med Assoc J. 2002 Sep;4(9):713-6
  26. Ann Surg. 2002 Sep;236(3):369-74; discussion 374-5.
  27. Am J Clin Nutr. 1997 Feb;65(2):512-8.
  28. Eur J Clin Nutr. 2000 Aug;54(8):615-7.
  29. Curr Opin Clin Nutr Metab Care. 2000 Jan;3(1):59-66.
  30. J Nutr. 1998 May;128(5):797-803. 
  31. J Parenter Enteral Nutr. 1995 May-Jun;19(3):227-30. 
  32. Ann Fr Anesth Reanim. 1995;14 Suppl 2:102-6.
  33. J Strength Cond Res. 2010 Apr;24(4):1082-90.
  34. Curr Opin Clin Nutr Metab Care. 2008 Jan;11(1):50-4.
  35. J Sports Med Phys Fitness. 1989;29(1):52-6.
  36. Burns Incl Therm Inj. 1987;13(5):349-56.
  37. CRC Press Boca Raton 1997 pg 130
  38. Nutrition. 1991;7(5):313-22
  39. Clin Nutr. 1999;18(4):209-17.
  40. Endokrynol Pol. 1986;37(1):11-5.
  41. J Trauma. 1984;24(7):590-6.
  42. Med Hypotheses. 2001 May;56(5):610-3.


Supplement Facts

Serving Size 1 level teaspoon (approx. 3.1 g)

Servings Per Container about 48

Amount Per Serving

L-Arginine hydrochloride

2.25 g

L-Ornithine hydrochloride

750 mg

Other ingredients: none.


Dosage and Use
  • Take one (1) level teaspoon on an empty stomach, or as recommended by a healthcare practitioner.


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