No Thanks

Your 10% Off Promo Code is on the Way! Thanks for signing up for emails.

You're now signed up to receive exclusive deals and savings opportunities!

Thanks again for connecting with us. Keep an eye on your inbox — your first coupon is on its way!

Thank You! This email address is already signed up

You are signed up for the following:

  • Offers
  • Recipes
  • E-Newsletter
  • Updates & Reminders

Thank you for your interest and be assured that you will continue to receive our emails at this address.

Look for your next communication from us within the next week.


We are having trouble processing your request.

Our apologies!

Please try again later.

Search Please enter an item number or keyword
Shop by
Do You
Need Help?

Swanson Ultra

AjiPure L-Arginine (Pharmaceutical Grade) with Ornithine

AjiPure L-Arginine (Pharmaceutical Grade) with Ornithine

Item: SWU457

  • Pharmaceutical grade

  • From Japanese-based Ajinomoto

  • The perfect ratio of l-arginine & l-ornithine

90 Veg Caps
Veg Caps Size: 00

MSRP $14.99
Save 27%
Yes! I want 10% off and free shipping over $50 on my next automatic shipment of this item.  days. Learn more
In Stock

Supplement Facts

Serving Size 1 Veggie Capsule

  Amount Per Serving % Daily Value
AjiPure® Pharmaceutical GradeL-Arginine 500 mg *
L-Ornithine HCl 250 mg *

*Daily Value not established.

Other ingredients: Cellulose (vegetable capsule), may contain one or more of the following: microcrystalline cellulose (plant fiber), magnesium stearate, silica.

Suggested Use: As a dietary supplement, take one veggie capsule one to three times per day with water on an empty stomach.

AjiPure® amino acids stand for purity, efficacy, and safety. Ajinomoto is the leading supplier of amino acids for medical use, so you can be sure to trust the best.

AjiPure® and the AjiPure® logo are registered trademarks of Ajinomoto, Inc.

Relative Size

Printable Size Guide

Shipping Weight

.24 lbs

  • Pharmaceutical grade

  • From Japanese-based Ajinomoto

  • The perfect ratio of l-arginine & l-ornithine

Swanson AjiPure L-Arginine with L-Ornithine helps promote muscular energy and is necessary for the production of nitric oxide.* Produced through fermentation using raw ingredients of non-animal origin, AjiPure amino acids are 99 to 100% pure. Impurities in other brands can be six times higher!

AjiPure amino acids stand for purity, efficacy and safety.

Swanson Ultra AjiPure L-Arginine (Pharmaceutical Grade) with Ornithine Reviews

Summary of Customer Ratings & Reviews

Customer Ratings & Reviews

AjiPure L-Arginine (Pharmaceutical Grade) with Ornithine is rated 4.6 out of 5 by 16.
Rated 5 out of 5 by from Yes and no? I was using the Swanson Premium 500/250 combo for quite a while. They seemed to work as anticipated. The AjiPure went on sale, so I bought some. Did not really notice the difference, and, as someone else mentioned, for a "99-100% pure" product, they seem to contain a lot of other stuff. Not sure these are a great value. With 500/250, I have to pop 2 to get the full effect during a 2-3 hour workout. I ran out a while back and paid a fortune at GNC for some 1500/1000. They have a real bang, but seem to be over-priced and too high a dosage. I think 1000/500 is about right for workouts and ...other strenuous activities ;-)
Date published: 2014-06-18
Rated 5 out of 5 by from combo magic I take it at night so the body has a chance to work on my muscle , after some time of use feel the benefits.
Date published: 2014-01-19
Rated 4 out of 5 by from Muscle Renewal Take two one half hour before sleeping, following training, and it will help your growth hormone rebuild muscles while you sleep.
Date published: 2013-10-07
Rated 5 out of 5 by from Big pills, small mg I've been using L-Arginine for training purposes for a while, but on and off. Started reading about Ornithine and wanted to give it a try. Only issue is, I don't get enough L-Arginine in one normal dose because they're 500mg instead of 1000mg... Not really sure the orthinine is making a difference either.
Date published: 2013-07-18
Rated 5 out of 5 by from Fat burner Very efficient fat burner! In no time you'll have abs dreams...
Date published: 2013-05-30
Rated 5 out of 5 by from Good product for those that exercise Excellent for improving blood flow to muscles during exercise routines.
Date published: 2013-03-06
Rated 5 out of 5 by from correct ratio and combination of ingredients The Swanson L-Arginine combines with ornithine to make this a more complete amino acid complex. It is almost half the price of other combinations of these two amino acids. And there are not that many companies that combine these two close relately amino's. It is a tremendous value.
Date published: 2013-03-03
Rated 5 out of 5 by from Great product to boost natural growth hormone. Growth hormone production diminishes with age. Arginine/Ornithine help stimulate the brain to produce growth hormone during the first 90 minutes of sleep. I take this product before bed on an empty stomach to boost my growth hormone production which burns fat and builds muscle. I highly recommend this product!
Date published: 2013-02-17
Rated 2 out of 5 by from OK product otherwise. Would be great if this product came in an excipient free version. it may cost more and we would gladly pay to have the option of having supplements that only contained the substance we desire. OK product otherwise.
Date published: 2011-12-21
Rated 5 out of 5 by from Take the Long term View Like with any supplement there is almost no way to determine its total effectiveness. After googling and and reading, I feel this is a worth while addition to the my regiment. While I really do not feel different taking it I feel that there will be long term benefits from it so it is on my list! This form is suppose to have excellent absorption proprieties and I feel its a good value. Do your homework and if you wish this combo you see its on the money for price and potency.
Date published: 2011-08-03
Rated 4 out of 5 by from It Works Adds energy and endurance. Good product
Date published: 2010-06-26
  • y_2017, m_12, d_13, h_19
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.3
  • cp_1, bvpage1
  • co_hasreviews, tv_5, tr_11
  • loc_en_US, sid_SWU457, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING), SortEntry(order=FEATURED, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_swansonhealth
Swanson Quality Assurance

Why Shop Swanson®?

We know how important your health is to you and your loved ones. That’s why we’re focused on delivering only high quality products you can trust at the best value.

Our lab evaluates every product to make sure it’s compliant with strict standards and government regulations, and we fully believe in and stand behind our products. If you’re dissatisfied for any reason, we’ll give you a full refund and pay return shipping.

Swanson's Standards

We are dedicated to offering the highest quality products at the best price. Find out more about how we ensure such a high standard in everything we do.

Learn More
Customer Service
About Swanson

Easy Refill

  • Get your favorite products delivered automatically
  • 10% off future orders of Swanson brand products in your subscription
  • FREE standard shipping on all future orders over $50
  • Control the frequency, delivery date, item quantity... or cancel at any time
  • Email reminders before each delivery
See all FAQs here