One-time purchase
To see product details, add this item to your cart.
Ships from: 鶹.ca
Sold by: 鶹.ca
To see product details, add this item to your cart. You can always remove it later.
Ships from
鶹.ca
鶹.ca
Ships from
鶹.ca
Sold by
鶹.ca
鶹.ca
Sold by
鶹.ca
Returns
Eligible for Refund or Replacement
Eligible for Refund or Replacement
This item is non-returnable, but if the item arrives damaged or defective, you may request a refund or replacement.
Read full return policy
Payment
Secure transaction
Your transaction is secure
We work hard to protect your security and privacy. Our payment security system encrypts your information during transmission. We don’t share your credit card details with third-party sellers, and we don’t sell your information to others. Learn more
Support
Product support included
What's product support?
In the event that your product does not work as expected or you need help using it, 鶹 offers free product support. To access this option, go to Your Orders and choose Get product support.
To see product details, add this item to your cart. You can always remove it later.
Added to

Sorry, there was a problem.

There was an error retrieving your wish lists. Please try again.

Sorry, there was a problem.

List unavailable.

NOW Sports, L-Arginine Powder, Nitric Oxide Precursor, Amino Acids, 454g

3.7 out of 5 stars 57 ratings
To see product details, add this item to your cart. You can always remove it later.

Purchase options and add-ons

Brand NOW
Unit count 454 Grams
Item form Powder
Item weight 0.45 Kilograms
Item dimensions L x W x H 8 x 4 x 6 Centimetres
Special ingredients L-Arginine
Product benefits Metabolism Management
Age range (description) Adult
Package information Teaspoonful
Number of Items 1

About this item

  • NOW Sports products are comprehensively tested so you can trust that our products are pure and effective for every level of athletics
  • PROTEIN METABOLISM*: L-Arginine supports protein metabolism and is heavily involved in muscle metabolism through its role in the maintenance of a proper nitrogen balance*
  • NITRIC OXIDE PRECURSOR*: L-Arginine is an important precursor of nitric oxide (NO) and thus plays a role in the dilation of blood vessels*
  • GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation)
  • FAMILY OWNED & OPERATED: Our product is proudly packaged by a family owned and operated company since 1968.
› See more product details

Frequently bought together

NOW Sports, L-Arginine Powder, Nitric Oxide Precursor, Amino Acids, 454g
This item: NOW Sports, L-Arginine Powder, Nitric Oxide Precursor, Amino Acids, 454g
$27.94($6.15/100 g)
In Stock
Ships from and sold by 鶹.ca.
+
NOW Supplements, L-Citrulline Pure Powder, Supports Protein Metabolism, 113g
$27.99($24.77/100 g)
In Stock
Ships from and sold by 鶹.ca.
Total price:$00
To see our price, add these items to your cart.
Details
Added to Cart
Choose items to buy together.

What do customers buy after viewing this item?

Page 1 of 1 Start again
Previous set of slides

  1. Bestselling | Highest rated

    in this set of products

  2. Lowest price

    in this set of products
Next set of slides

Important information

Ingredients

Each level teaspoonful (5 mL) contains: L-Arginine 2300 mg. Non-Medicinal Ingredients: None.

Legal Disclaimer

Actual product packaging and materials may contain more and different information than what is shown on our website. We recommend that you do not rely solely on the information presented and that you always read labels, warnings, and directions before using or consuming a product.

Product description

L-Arginine is a conditionally essential basic amino acid involved primarily in urea metabolism and excretion, as well as DNA synthesis. L-Arginine is the substrate for the synthesis of nitric oxide (NO), a cell-derived relaxing factor that is essential for regulating vascular tone and blood flow. It also supports the manufacture of creatine, an energy substrate for muscles. 95% of creatine is located in the skeletal muscle. This powder version allows for controlled dosing. Our NOW® natural and organic Supplements are an effective way to ensure you and your loved ones are getting essential vitamins, minerals and nutrients for daily optimal health. Since 1968, NOW®has been making top quality products that are tested to the highest standards to empower people to lead healthier lives. Our promise - what is on the label, is precisely what is in the bottle.

From the brand

Previous page

  2. Leader in natural nutrition

    At NOW Sports we’re all about natural, unadulterated sports nutrition supplements that legitimately enhance performance.

  3. NOW Sports Nutrition, Pea Protein 24 g, Easily Digested, Dutch Chocolate Flavoured Powder, 907g
    NOW Sports Nutrition, Creatine Monohydrate Powder, Mass Building*/Energy Production*, 227g
    NOW Sports Nutrition, Branched Chain Amino Acids, With Leucine, Isoleucine and Valine, 60 Veg Cap...
    NOW Sports Nutrition, Tribulus (Tribulus terrestris) 400 mg, Enhanced Vitality*, 100 Veg Capsules

    Shop Customer Favourites

    Visit the store

  4. Certified Informed Sport

    Informed-Sport, the world’s leading anti-doping organization, so you can trust that our products are pure, safe and effective.

  5. NOW Sports Nutrition, ZMA (Zinc, Magnesium and Vitamin B-6), Enhanced Absorption, Sports Recovery...
    NOW Sports Nutrition, D-Ribose Pure Powder, 113g
    NOW Sports Nutrition, L-Glutamine, Double Strength 1,000 mg, Amino Acid, 120 Veg Capsules
    NOW Sports Nutrition, Arginine & Citrulline 500 mg/ 250 mg, Amino Acids, 120 Veg Capsules

    Shop Endurance & Amino Acids

    Visit the store

  6. Fuel up with NOW Sports

    Fuel up with the right nutrition at the right time to make sure you get the most out of each training session.

  7. NOW Sports Nutrition, Pea Protein 24 g, Fast Absorbing, Plant Based, Unflavoured Flavoured, 907g
    NOW Sports Nutrition, Pea Protein 25 g With BCAAs, Easily Digested, Vanilla Toffee Flavoured Powd...
    NOW Sports Nutrition, Pea Protein 24 g, Easily Digested, Dutch Chocolate Flavoured Powder, 907g
    NOW Sports Nutrition, L-Glutamine Pure Powder, Nitrogen Transporter*, Amino Acid, 454g

    Shop Post-Workout Nutrition

    Visit the store

Next page

From the manufacturer

sports nutrition active work out
pre work out essentials
training essentials
post work out essentials
support your fitness goals NOW

Product information

Technical Details

Manufacturer ‎Puresource
Place of Business ‎Guelph, ON N1L 1M6, CA
Item model number ‎L-Arginine Pure Pwd 454g
Product Dimensions ‎8 x 4 x 6 cm; 454 g
ASIN ‎B00PUX48UK

Additional Information

鶹 Rank

Feedback

NOW Sports, L-Arginine Powder, Nitric Oxide Precursor, Amino Acids, 454g

Found a lower price? Let us know. Although we can't match every price reported, we'll use your feedback to ensure that our prices remain competitive.

Where did you see a lower price?
/
/
/
/
Please sign in to provide feedback.

Product details

  • Product Dimensions ‏ : ‎ 8 x 4 x 6 cm; 454 g
  • Date First Available ‏ : ‎ Nov. 19 2014
  • Manufacturer ‏ : ‎ Puresource
  • Place of Business ‏ : ‎ Guelph, ON N1L 1M6, CA
  • ASIN ‏ : ‎ B00PUX48UK
  • Item model number ‏ : ‎ L-Arginine Pure Pwd 454g
  • Country of origin ‏ : ‎ China
  • Customer Reviews:
    3.7 out of 5 stars 57 ratings

Brands in this category on 鶹

Sponsored

Customer reviews

3.7 out of 5 stars
57 global ratings

Review this product

Share your thoughts with other customers
Write a customer review

Customers say

Customers like the effectiveness, quality, and value of the nutritional supplement. They mention it works well and is the best arginine on the market. However, some customers have reported that it has a horrible taste and a strong odor.

Select to learn more

EffectivenessQualityTasteOdor
4 customers mention "Effectiveness"4 positive0 negative

Customers are satisfied with the effectiveness of the nutritional supplement. They mention it works well.

"...Works great." Read more

"Great product, weird taste but do the job. Best value for your bucks." Read more

"...This product works well." Read more

"Works well..." Read more

4 customers mention "Quality"4 positive0 negative

Customers are satisfied with the quality of the product. They mention it's good for blood flow and the best arginine on the market.

"Arrived next day, excellent price, best arginine on the market!" Read more

"Great product, weird taste but do the job. Best value for your bucks." Read more

"NOW is usually a quality choice. This product is good for blood flow. If your in need or for maintenance have a try...." Read more

"The Good Stuff??..." Read more

8 customers mention "Taste"0 positive8 negative

Customers are dissatisfied with the taste of the nutritional supplement. They mention it has a horrible taste.

"...Also nasty bitter tasting which is normal for arginine...." Read more

"...But I must say the taste is disgusting unfortunately. Even if you mix it with Juice and such...." Read more

"Great product, weird taste but do the job. Best value for your bucks." Read more

"0 stars Tastes terrible. Most arginine powders are tolerable tasting. This made me gag and stayed in my mouth after rinsing, stuck to my teeth." Read more

3 customers mention "Odor"0 positive3 negative

Customers are dissatisfied with the odor of the nutritional supplement. They mention it has quite a strong smell and some find the taste undesirable.

"Yes the product smells like *** but according to chemical specifications it is supposed to smell like that...." Read more

"...it made me make faces and wintch with every swallow - the smell is like a chemical factory up close - so pungent and lingering...." Read more

"...It has quite a strong smell and some find the taste undesirable but that is quite normal due to the nature of what it is. This product works well." Read more

Top reviews from Canada

  • inky mark
    5.0 out of 5 stars L argenine
    Reviewed in Canada on February 3, 2024
    Verified Purchase
    Works
    Helpful
     Report
  • 鶹 Customer
    4.0 out of 5 stars The Good Stuff??
    Reviewed in Canada on December 27, 2024
    Verified Purchase
    Yes the product smells like *** but according to chemical specifications it is supposed to smell like that. Also nasty bitter tasting which is normal for arginine. Other Arginine products like Allmax have no odour nor taste which makes me question the purity of those other products.
    Helpful
     Report
  • Pamela Woods
    1.0 out of 5 stars Awful Taste
    Reviewed in Canada on May 30, 2025
    Verified Purchase
    I decided to try this product since the price was compelling. But I must say the taste is disgusting unfortunately.
    Even if you mix it with Juice and such.
    CanPrev and Allmax are the once to go to although more expensive.
    Helpful
     Report
  • SM
    3.0 out of 5 stars It’s L-Arginine, but…
    Reviewed in Canada on October 15, 2023
    Verified Purchase
    …but it tastes awful. So, I went back to the brand that sells their HCI version
    Helpful
     Report
  • Mark
    5.0 out of 5 stars Perfect
    Reviewed in Canada on November 3, 2023
    Verified Purchase
    Arrived next day, excellent price, best arginine on the market!
    Helpful
     Report
  • ronbchamp
    5.0 out of 5 stars Best bang for my buck
    Reviewed in Canada on December 25, 2022
    Verified Purchase
    I put it in 000 capsules and take one a day to help with poor circulation. Works great.
    Helpful
     Report
  • bukyh
    4.0 out of 5 stars Effective
    Reviewed in Canada on November 29, 2024
    Verified Purchase
    Great product, weird taste but do the job. Best value for your bucks.
    Helpful
     Report
  • YK2020
    1.0 out of 5 stars Bad taste…worst tasting arginine powder I’ve ever tried.
    Reviewed in Canada on May 11, 2025
    Verified Purchase
    0 stars
    Tastes terrible. Most arginine powders are tolerable tasting. This made me gag and stayed in my mouth after rinsing, stuck to my teeth.
    One person found this helpful
    Helpful
     Report

Disclaimer:While we work to ensure that product information is correct, on occasion manufacturers may alter their ingredient lists. Actual product packaging and materials may contain more and/or different information than that shown on our Web site. We recommend that you do not solely rely on the information presented and that you always read and follow labels, warnings, and directions before using or consuming a product. This product may not be right for you. For additional information about a product, please contact the manufacturer. Content on this site is for reference purposes and is not intended to substitute for advice given by a physician, pharmacist, or other licensed health-care professional. You should not use this information as self-diagnosis or for treating a health problem or disease. Contact your health-care provider immediately if you suspect that you have a medical problem. 鶹.ca assumes no liability for inaccuracies or misstatements about products.