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NOW Supplements, L-Arginine 500 mg, Nitric Oxide Precursor*, Amino Acid, 100 Veg Capsules

4.7 stars out of 39 reviews

(4.7)|

NOW Supplements, L-Arginine 500 mg, Nitric Oxide Precursor*, Amino Acid, 100 Veg Capsules NOW Supplements L Arginine 500 mg Nitric Oxide Precursor Amino Acid 100 Veg Capsules NOW Supplements L Arginine 500 mg Nitric Oxide Precursor Amino Acid 250 Veg Capsules

Size:100

Specs

Size
100
Enteral medication & supplement form
Capsules
Primary ingredient
L-Arginine
Medicine strength
500mg
Activity stage
Post-Workout
Vitamin & supplement type
Multivitamin Supplements

Current price is Now $10.99

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was $12.99

11.0 ¢/count

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Columbus, 43215

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4.746283448959366 stars out of 5, based on 1012 seller reviews(4.7)

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About this item

Product details

Conditionally Essential Amino Acid Nitric Oxide Precursor* 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. As a family-owned company since 1968 — NOW produces high-quality natural products at prices everyone loves. We are a respected leader in the natural products industry, with a mission to provide value in products and services that empower people to lead healthier lives.

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Specifications

Size

100

Enteral medication & supplement form

Capsules

Primary ingredient

L-Arginine

Medicine strength

500mg

Indications

Health Concern

Immune System Support

Directions

Dosage

2 Veg Capsules

Instructions

As a dietary supplement, take 2 capsules 1 to 3 times daily as needed. Take between meals or at bedtime with a carbohydrate drink to facilitate absorption. Store in a cool, dry place after opening. Please recycle.

Warranty

Warranty information

N/A

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Ingredients

Hypromellose (cellulose capsule), stearic acid

Warnings

Warning Text

Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish, or tree nut ingredients. Produced in a GMP facility that processes other ingredients containing these allergens. For adults only. Consult physician if pregnant/nursing, taking medication, or have a medical condition. This supplement 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 infection or have established coronary artery disease. Keep out of reach of children.

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Customer ratings & reviews

4.7 out of 5 stars

stars39 ratings21 reviews

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Showing 1-3 of 21 reviews

Feb 2, 2026

MARIE

5 out of 5 stars review

Seller Verified Purchase

Life Extention auto delivery is perfect for me.

Love being able to get my meds automatically delivered by Life Extention. I never have to worry about running out......Life Extention makes sure they are delivered when I need them.

Review from Life Extension

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Nov 14, 2020

HappyNappy

5 out of 5 stars review

Verified Purchase

So far, so good, only seem to need one at night, so far, I feel a big difference in the way I feel, oxygen wise. Healthy breathing!

Helpful?

Nov 7, 2023

Madison

5 out of 5 stars review

Verified Purchase

Great price, quality %26 shipping!

The shipping was quick and the price very affordable! Have always loved NOW products and I'm so glad that I can get them here!

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NOW Supplements, L-Arginine 500 mg, Nitric Oxide Precursor*, Amino Acid, 100 Veg Capsules

Specs

How do you want your item?

Get free delivery, shipping and more*

About this item

Product details

Specifications

Size

Enteral medication & supplement form

Primary ingredient

Medicine strength

Indications

Health Concern

Directions

Dosage

Instructions

Warranty

Warranty information

Ingredients

Ingredients

Warnings

Warning Text

Similar items you might like

Based on what customers bought

100+ bought since yesterday Spring Valley L-Arginine Amino Acid Supplements Capsules for Heart Health, 500 mg, 100 Count $6.88 6.9 ¢/count

Spring Valley L-Arginine Amino Acid Supplements Capsules for Heart Health, 500 mg, 100 Count

NOW Supplements, L-Arginine 1,000 mg, Nitric Oxide Precursor*, Amino Acid, 120 Tablets $16.52 13.8 ¢/ea

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

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Best Naturals L-Arginine 500mg 250 Capsules - Pharmaceutical Grade L Arginine supplement promotes nitric oxide synthesis $9.99 Was $19.99

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NOW Foods L-Lysine, 500 mg, 100 Veg Capsules $10.03 Was $11.99

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