Working...
Arginine and Ornithine combines two essential amino acids into one optimal supplement. Arginine is necessary for urea metabolism, a process that prepares toxic ammonia for safe excretion by the kidneys. ; Ornithine is synthesized from Arginine and is a precursor of citruline, proline and glutamic acid.* ; Both of these amino acids are popular with athletes and other active individuals.  ;  Product FAQ's.
Full price 39.99
Savings 31%

Arginine & Ornithine 500/250mg (250 Caps)

Buy 3 - Get free delivery on whole order

Arginine & Ornithine 500/250mg - 250 Caps

NOW Foods

Arginine and Ornithine combines two essential amino acids into one optimal supplement. Arginine is necessary for urea metabolism, a process that prepares toxic ammonia for safe excretion by the kidneys. ; Ornithine is synthesized from Arginine and is a precursor of citruline, proline and glutamic acid. Both of these amino acids are popular with athletes and other active individuals.

Supplement Facts
Arginine & Ornithine 500/250mg - 250 Caps
  APS%DV
Servings Per Container:125
Serving Size:2 Capsules
L-Arginine (Free-Form)1 g (1000 mg) *
L-Ornithine (from L-Ornithine HCI)500 mg *

Serving Size: 2 Capsules  

Servings Per Container:  125

Suggested Usage: As a dietary supplement, take 2 capsules 2 to 3 times daily, preferably with juice or water on an empty stomach, before exercise or at bedtime.

Other Ingredients: Gelatin (capsule) and Magnesium Stearate (vegetable source).

Contains no: sugar, salt, starch, yeast, wheat, gluten, corn, soy, milk, egg, shellfish or preservatives.  

Caution:  Do Not Eat Freshness Packet.  Keep in Bottle.  

Warning:  This supplement should be avoided by persons with glaucomaor herpes simplex unless otherwise prescribed by a physician.  Do not use if you have had a myocardial infarction or have established coronary artery disease. Please Recycle.

Amino Acids

By Marianne Moreno - Flag 
Comments? Question?
Updated Dec. 18, 2012, about 11 years ago

SKU: 42
UPC: 733739000422
Distributed or manufactured from NOW Foods. See more NOW Foods products.
L-Ornithine 500 mg (120 Caps)
L-Ornithine 500 mg (120 Caps) NOW Foods


 17.65 
NOW Foods
Tri-Amino (120 Caps)
Tri-Amino (120 Caps) NOW Foods


 15.22 
NOW Foods

Be the first to tell us your thoughts.Add your testimonial

Questions and answers:

Asked on: March 13, 2013
Question: I use now Arginine Ornithine and I was wondering your opinion that the Ornithine can harden your stool as I have seen on 2 other sites. I have noticed this and as with all products I monitor them closely and and limit the products I take at any given time currenlty this is all I use. . This product does work well.
  • A: Though I cannot say that constipation is not a side effect of this supplement, I am not finding anything to support that claim.  Many things can cause hardened stools. Some of the most common things are low water and fiber intake. Please consult with your physician though to find out specifically why you are experiencing this as they can more accurately advise. 

Explore More Products

AAKG 3500 (180 Tabs)
AAKG 3500 (180 Tabs) NOW Foods


 41.52 
NOW Foods

ornithine arginine 250mg glaucomaor, prepares citruline 125 infarction, unless athletes proline precursor
1. Statements and claims on Seacoast.com have not been evaluated by the FDA and are not intended to treat or diagnose any ailment or disease.

What interests you?

Acidophilus 4 X 6 Billion (120 Caps) NOW Foods

Purely-B Powder (1 lb) North American Herb and Spice

Preg-Natal (180 tablets) Jarrow Formulas

Raspberry Ketone Rapid Weight Loss Catalyst (100 mg, 2 oz) Essential Source

Ideal Bowel Support 299v (30 vcaps) Jarrow Formulas

MacuGuard Ocular Support with Saffron (60 softgels)* Life Extension

Argentum nitricum 30X Boiron

Pectasol-C Modified Citrus Pectin | From Fruit Peel to Cancer Fighter
PectaSol-C Modified Citrus Pectin is the most effective product available for comprehensive, natural cellular health support. Dr. Isaac Eliaz, founder Econugenics.

Fibrovera AHS (90 capsules)* Arthur Andrew Medical

Wobenzym | Systemic Enzymes | Wobenzym N
Wobenzym N is the authentic systemic enzyme formula developed by Mucos Pharma in Germany and trusted by millions of people worldwide for over 40 years. Free Shipping on all Wobenzym orders with delivery inside the United States.

Estroven Maximum Strength Plus Energy (28 caplets) Amerifit

PRID (18 g) Hylands

Sleep Tonight (28 Tabs) Enzymatic Therapy