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NOW Supplements, L-Arginine 1,000 mg, Nitric Oxide Precursor*, Amino Acid, 120 Tablets

4.5 4.5 out of 5 stars 12,737 ratings

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120 Count (Pack of 1)
Supplements

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About this item

  • DOUBLE STRENGTH L-ARGININE: NOW offers this non-GMO, double strength L-Arginine supplement in 1,000 mg tablets.
  • NITRIC OXIDE PRECURSOR: Arginine plays an important role in the dilation of blood vessels.
  • CLASSIFICATIONS/CERTIFICATIONS: Non-GMO, Kosher, Soy Free
  • 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).
  • Packaged in the USA by a family owned and operated company since 1968.

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From the manufacturer

Product Description

Now L-Arginine comes in extra strength 1,000 mg tablets and is non-GMO. Arginine is a conditionally essential basic amino acid involved primarily in urea metabolism and excretion, as well as in DNA synthesis and protein production. It is an important precursor of nitric oxide (NO) and thus plays a role in the dilation of blood vessels. The L-Arginine used in this product is pharmaceutical grade. Natural color variation may occur in this product.

Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 2.7 x 2.7 x 4.75 inches; 8.64 ounces
  • Item model number ‏ : ‎ 0035
  • Department ‏ : ‎ Health and Beauty>Health and Wellness
  • Date First Available ‏ : ‎ January 8, 2004
  • Manufacturer ‏ : ‎ NOW Sports - Nutrition and Wellness
  • ASIN ‏ : ‎ B0013OVX3U
  • Customer Reviews:
    4.5 4.5 out of 5 stars 12,737 ratings

Product guides and documents

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NOW Supplements, L-Arginine 1,000 mg, Nitric Oxide Precursor*, Amino Acid, 120 Tablets
NOW Supplements, L-Arginine 1,000 mg, Nitric Oxide Precursor*, Amino Acid, 120 Tablets
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Price-44% $16.75
List:$29.99
$11.01$34.99$18.96-15% $13.29
List:$15.64
$14.99
Price Per Unit$0.14 / Count$0.18 / Count$0.19 / Count$0.08 / Count$0.09 / Count$0.12 / Count
Delivery
Get it as soon as Monday, Mar 18
Get it as soon as Monday, Mar 18
Get it Mar 18 - 20
Get it as soon as Monday, Mar 18
Get it as soon as Monday, Mar 18
Get it as soon as Monday, Mar 18
Customer Ratings
Flavor
3.7
4.2
3.6
4.0
3.8
Easy to swallow
3.4
4.0
4.0
4.6
4.2
Value for money
4.1
4.5
4.8
4.0
Sold By
Highland Health Foods
Amazon.com
GNC
BulkSupplements
Carlyle
Futurebiotics, LLC
keyword type
l-arginine-nutritional-supplements
l-arginine-nutritional-supplements
l-arginine-nutritional-supplements
l-arginine-nutritional-supplements
l-arginine-nutritional-supplements
l-arginine-nutritional-supplements
form
Tablet
Tablet
Capsule
Capsule
Capsule
Capsule
flavor
Unflavored
Unflavored
Unflavored
size
120 Count (Pack of 1)
60.0 Servings (Pack of 1)
180 Count (Pack of 1)
240 Count (Pack of 1)
150 Count (Pack of 1)
120 Count (Pack of 1)
weight
0.24 kilograms
0.15 kilograms
0.31 kilograms
0.14 kilograms
0.07 ounces
age range
Adult
Adult
Adult
Adult
Adult
product benefit
Vascular Health Support, Metabolism Management
Muscle Growth
Heart Health Support
Circulation Support
serving suggestion
Take 1 tablet twice daily as needed
1 Tablet
Two Capsules

Important information

Safety Information

For adults only. Not for pregnant or nursing women. Consult physician if taking medication (especially antihypertensives, anticoagulants, and antidiabetic drugs), have a medical condition (especially asthma or renal disease) or are planning to have surgery. This product should be avoided by persons with glaucoma or herpes simplex unless otherwise prescribed by a physician. Do not use if you have had a myocardial infarction or have established coronary artery disease. Keep out of reach of children. Xylitol is harmful to pets; seek veterinary care immediately if ingestion is suspected. Learn more about pet safety

Ingredients

Supplement FactsServing Size:1 TabletServings Per Container:120DescriptionAmount per Serving% Daily ValueL-Arginine(from 1,250 mg L-Arginine HCl) 1 g (1,000 mg) ** Daily Value not established. **Daily Value not established.Other Ingredients: Microcrystalline Cellulose, Hydroxypropyl Cellulose, Stearic Acid (vegetable source), Croscarmellose Sodium, Silicon Dioxide and Vegetarian Coating [hypromellose (cellulose), calcium carbonate, glycerin]. Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish, tree nut or sesame ingredients. Produced in a GMP facility that processes other ingredients containing these allergens. Caution: Take this product with at least 8 oz. of water or juice. For adults only. Not for pregnant or nursing women. Consult physician if taking medication (especially antihypertensives, anticoagulants, and antidiabetic drugs), have a medical condition (especially asthma or renal disease) or are planning to have surgery. This product should be avoided by persons with glaucoma or herpes simplex unless otherwise prescribed by a physician. Do not use if you have had a myocardial infarction or have established coronary artery disease. Keep out of reach of children. This product has twice the L-Arginine (1,000 mg per tablet) as in our regular strength product (500 mg per capsule). The L-Arginine used in this product is pharmaceutical grade. Natural color variation may occur in this product. Made and quality tested in the USA with globally sourced ingredients. Store in a cool, dry place after opening. Family owned since 1968.

Directions

Take 1 tablet twice daily as needed. Take between meals or at bedtime with a carbohydrate drink to facilitate absorption.

Legal Disclaimer

* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease. **Always refer to the manufacturer's label on the product for description, recommended dose and precautions.

Statements regarding dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition.

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Customer reviews

4.5 out of 5 stars
4.5 out of 5
12,737 global ratings

Customers say

Customers are happy with the value and quality of the nutritional supplement. They say it has increased their blood flow and helped to dilate their blood vessels. They are also happy with quality, blood flow, and performance. However, some customers find the pills difficult to swallow and find them too big to swallow whole. Customers differ on the effect on pain.

AI-generated from the text of customer reviews

376 customers mention318 positive58 negative

Customers like the quality of the nutritional supplement. They say it's good, effective, and impossible to swallow whole. Some say that it works well and provides a great result with a medical problem. Some customers also say that the NOW brand is good and they are pleased with the quality and price.

"...huge and hard to swallow but I like this name brand because it’s a good quality." Read more

"Works as expected. Who knew it was this sinple. No drugs required." Read more

"...Amino Acids are an important supplement if you work out and exercise every day like I do. This is essential for endurance and stamina. Keep it up!" Read more

"Works good" Read more

142 customers mention111 positive31 negative

Customers like the value of the nutritional supplement. They say it has good value and quality on point.

"Get plenty of rest and exercise and you will be healthy, wealthy and wise...." Read more

"Great price for a quality product. Easy to swallow and no bad aftertaste.." Read more

"...Maybe it does maybe it doesn’t. The price is right to give it a try. So go for it I guess" Read more

"Low price and have not used long enough to provide feed back" Read more

90 customers mention90 positive0 negative

Customers are satisfied with the performance of the nutritional supplement. They mention that it really helps amp up their workout, helps them throughout the entire day, and improves their breath and heart and chest health. They also mention it's a great supplement to help in building muscle and maintaining soft-tissue health, and that it'll push them further for their work out. They say it'd also toned up their physical appearance and improved their gym performance. Overall, customers are happy with the product's performance and recommend it to others.

"This stuff is so awesome, really helps amp up my workout. Stronger with better endurance and recovery...." Read more

"...If it works for me, it may help you. Blood flow all over. It helps my heart and chest and for that, I’ll keep taking as well as enjoying the extra..." Read more

"It's a great supplement to help in building muscle and maintaining soft-tissue health." Read more

"I have been using this product for years and it adds energy and stamina to my daily work out routine." Read more

49 customers mention46 positive3 negative

Customers like the blood flow of the product. They mention that it improves their circulation, causes their blood vessels to dilate, and causes their veins to bulge. Some customers also report that their vein pops out when lifting.

"...I’m 37 and I smoke. If it works for me, it may help you. Blood flow all over...." Read more

"Bought this to help increase circulation in my hands and feet which it did...." Read more

"...for your work out and with energy they are really good the blood flow is more stronger and with the friend's male is going to give an extra push..." Read more

"This product had positive results on my circulation--improved blood flow and nice flush feeling on my entire body--though after only two days of..." Read more

47 customers mention47 positive0 negative

Customers are satisfied with the blood pressure-lowering effect of the nutritional supplement. They mention that it has increased their blood flow, helped to dilate their blood vessels, and made a big difference in circulation. Some say that their heart was pumping better and that their blood pressure was in optimal range.

"Noticeable positive difference in blood circulation (for me atleast) everybody is different though." Read more

"...Within two hours I felt it working. I could tell my heart was pumping better, overall I felt different. I wasn’t working out or anything...." Read more

"...for buying these.lol But I like the Bonus side effects and it makes your blood flow to all the right places." Read more

"...My blood pressure is lower. I have more energy and less stress and anxiety. I had tried everything...." Read more

48 customers mention23 positive25 negative

Customers are mixed about the effect of the product on pain. Some mention that it helps them not be as sore, has been consistent, and helps with nerve/muscle pain. However, others say that it started causing chest pains and elevated blood pressure, as well as stomach aches and the runs. Some customers also say that the product ends up leaving them really hard.

"...I will say that there are NO ED issues currently happening, and I feel great!..." Read more

"My second bottle and I’m not sure they are absorbing, no difference in strength or feeling. Price doesn’t matter, normal delivery speed." Read more

"...This surprised us and she spoke to her MD. She too experienced improved migraine relief compared to her standard prescription which she relies more..." Read more

"...this product in the morning on empty stomach, I have experienced strong right side headaches, they are sharp and come and go for about 2 hours...." Read more

145 customers mention25 positive120 negative

Customers dislike the size of the pills. They say that they are too big and difficult to swallow. Some customers also mention that the pills are too large and don't want to go down.

"They are huge and hard to swallow but I like this name brand because it’s a good quality." Read more

"The product is fine as it is recommended.The size of these tablets too LARGE and very cumbersome to swallow down...." Read more

"...not certain if the product has been perfected by now, but these tablets are huge and hard to swallow and disgusting- super hard to gag down...." Read more

"...The tablets are kind of big, but I don't have a problem swallowing them...." Read more

96 customers mention12 positive84 negative

Customers have negative opinions about the ease of swallowing the nutritional supplement. They mention that the pills are large and difficult to swallow. Some customers also report that the tablets are difficult to consume at times.

"They are huge and hard to swallow but I like this name brand because it’s a good quality." Read more

"...The size of these tablets too LARGE and very cumbersome to swallow down.Message to the seller/provider:..." Read more

"...product has been perfected by now, but these tablets are huge and hard to swallow and disgusting- super hard to gag down...." Read more

"Difficult to swallow." Read more

Well sealed good product
5 Stars
Well sealed good product
They are huge and hard to swallow but I like this name brand because it’s a good quality.
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Top reviews from the United States

Reviewed in the United States on March 3, 2024
Size: 120 Count (Pack of 1)Style: SupplementsVerified Purchase
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5.0 out of 5 stars Well sealed good product
Reviewed in the United States on March 3, 2024
They are huge and hard to swallow but I like this name brand because it’s a good quality.
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Reviewed in the United States on January 31, 2024
Size: 120 Count (Pack of 1)Style: SupplementsVerified Purchase
2 people found this helpful
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Reviewed in the United States on January 18, 2024
Size: 120 Count (Pack of 1)Style: SupplementsVerified Purchase
3 people found this helpful
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Reviewed in the United States on November 30, 2023
Size: 120 Count (Pack of 1)Style: SupplementsVerified Purchase
9 people found this helpful
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Reviewed in the United States on March 10, 2024
Size: 120 Count (Pack of 1)Style: SupplementsVerified Purchase
Reviewed in the United States on October 18, 2017
Size: 120 Count (Pack of 1)Style: SupplementsVerified Purchase
1,316 people found this helpful
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Reviewed in the United States on January 4, 2024
Size: 120 Count (Pack of 1)Style: SupplementsVerified Purchase
One person found this helpful
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Reviewed in the United States on February 2, 2024
Size: 120 Count (Pack of 1)Style: SupplementsVerified Purchase
2 people found this helpful
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Top reviews from other countries

Amazon Customer
5.0 out of 5 stars 10/10 For Retailer Hitesh Enterprise My third order with them ...
Reviewed in India on December 8, 2017
Size: 120 Count (Pack of 1)Style: SupplementsVerified Purchase
2 people found this helpful
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Roger
5.0 out of 5 stars Product as described
Reviewed in Australia on January 8, 2024
Size: 120 Count (Pack of 1)Style: SupplementsVerified Purchase
Yukie
5.0 out of 5 stars Very good
Reviewed in Japan on September 22, 2023
Size: 120 Count (Pack of 1)Style: SupplementsVerified Purchase
One person found this helpful
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Prafull Mhatre
5.0 out of 5 stars Nice results
Reviewed in India on August 26, 2019
Size: 120 Count (Pack of 1)Style: SupplementsVerified Purchase
Eva
5.0 out of 5 stars Good for you immune
Reviewed in Australia on December 19, 2023
Size: 120 Count (Pack of 1)Style: SupplementsVerified Purchase

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 labels, warnings, and directions before using or consuming a product. 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. Information and statements regarding dietary supplements have not been evaluated by the Food and Drug Administration and are not intended to diagnose, treat, cure, or prevent any disease or health condition. Amazon.com assumes no liability for inaccuracies or misstatements about products.