L-Arginine, ranked by real cost

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L-Arginine is an amino acid your body uses to make nitric oxide, the compound that helps blood vessels relax and dilate. That's why it's sold as a "pump" or circulation supplement. The evidence picture is mixed. Oral L-Arginine consistently produces small reductions in blood pressure (roughly 5 points systolic) at doses of 4-24g/day in clinical trials. For exercise performance, the "pump" most users are chasing, direct evidence is weaker — most studies show limited benefit over placebo. Here's something worth knowing: L-Citrulline (also on TrueServing) actually outperforms L-Arginine for nitric oxide production in most direct comparisons. L-Arginine gets broken down heavily on first pass through the liver before it can raise blood arginine levels; L-Citrulline doesn't, and converts to arginine once it reaches the bloodstream. If you're buying for circulation or pump, L-Citrulline is often the better choice at a comparable or lower cost. Research doses are higher than most commercial products. Many capsules contain 500mg-1g, meaning hitting a research dose requires taking many capsules per day. Products below are ranked by cost at your chosen daily dose.

6g/day = 180g/month
34 products
cheapest: $1.44/mo
1983% spread
# Product 30-day cost Supply Sticker
1
Best Naturals L-Arginine 500mg 250 Capsules - Pharmaceutical Grade L Arginine supplement promotes nitric oxide synthesis
Best Naturals Store
Capsules
$1.44 21d $11.99 View on Amazon
2
Amazing Formulas L-Arginine 1000mg Tablets | Amino Acid Supplement for Women & Men | Non-GMO | Gluten Free | Made in USA (240 Count)
Amazing Nutrition Store
Tablets
$2.50 40d $19.99 View on Amazon
3
(New Improved Formula) Best Naturals L-Arginine 1000 mg 120 Tablets - Pharmaceutical Grade L Arginine Supplement Promotes Nitric Oxide Synthesis
Best Naturals Store
Tablets
$2.50 20d $9.99 View on Amazon
4
Life Extension L-Arginine Caps, 700 mg, Vitamin C & Amino Acid for Optimal arterial Health, Supports Heart & Immune Health, Healthy Tissue & Bones, Gluten Free, Non-GMO, 200 Capsules
Life Extension Store
Capsules
$2.74 23d $18.25 View on Amazon
5
Nutricost L-Arginine 1000mg, Amino Acid Tablets (150 Tablets)
Nutricost Store
Tablets3rd-party tested
$3.19 25d $15.95 View on Amazon
6
365 by Whole Foods Market, L Arginine 500Mg 100 Veggie Caps
365 by Whole Foods Market Store
Capsules
$3.38 8d $11.28 View on Amazon
7
Now Foods Sports Nutrition, L-Arginine Double Strength 1000mg, Nitric Oxide Precursor, Amino Acids, 180 Tablets
NOW Foods Store
Tablets
$3.85 30d $23.10 View on Amazon
8
NOW Foods Supplements, L-Arginine 500 mg, Nitric Oxide Precursor*, Amino Acid, 250 Veg Capsules
NOW Foods Store
Capsules
$3.89 21d $16.20 View on Amazon
9
Nugenix Essentials L-Arginine Amino Acid Supplement, 1000 mg, 150 Tablets
Nugenix Store
Tablets
$4.00 25d $19.99 View on Amazon
10
NOW Foods Supplements, L-Arginine 1,000 mg, Nitric Oxide Precursor*, Amino Acid, 120 Tablets
NOW Foods Store
Tablets
$4.26 20d $17.04 View on Amazon
11
NOW Foods Supplements, L-Arginine 500 mg, Nitric Oxide Precursor*, Amino Acid, 100 Veg Capsules
NOW Foods Store
Capsules
$4.56 8d $7.60 View on Amazon
12
BulkSupplements.com L-Arginine HCl Powder - Nitric Oxide Supplement, Arginine Powder - Unflavored & Gluten Free, 5g per Serving, 1kg (2.2 lbs) (Pack of 1)
BulkSupplements Store
Powder
$4.95 167d $32.97 View on Amazon
13
Horbäach L-Arginine 1000mg | 150 Capsules | Free Form Dietary Supplement | Non-GMO & Gluten Free
Horbäach Store
Capsules
$5.60 13d $13.99 View on Amazon
14
Nutricost L-Arginine Powder 500 Grams (1.1lbs) - Pure L-Arginine Powder - 5000mg Per Serving; 100 Servings
Nutricost Store
Powder
$6.59 83d $21.95 View on Amazon
15
Best Naturals L-Arginine 3000mg Per Serving - 240 Tablets - Pharmaceutical Grade - Non-GMO & Gluten Free - Made in the USA
Best Naturals Store
Tablets
$6.75 40d $17.99 View on Amazon
16
Futurebiotics Beet Root + L-Arginine, Non-GMO, 120 Vegetarian Capsules
Futurebiotics Store
Capsules
$7.49 10d $14.99 View on Amazon
17
Nutricost L-Arginine (250 Grams) - Pure L-Arginine Powder - 5000mg Per Serving; 50 Servings
Nutricost Store
Powder
$7.77 42d $12.95 View on Amazon
18
Micro Ingredients L-Arginine 1000mg with MCT Oil, 300 Softgels | Nitric Oxide Precursor* for Men & Women | Extra Strength Amino Acid Formula for Daily Wellness | Non-GMO, Gluten Free, No Soy
Micro Ingredients Store
Softgels
$8.00 13d $19.99 View on Amazon
19
BulkSupplements.com AAKG Capsules - L-Arginine Supplement, Nitric Oxide Supplement - Gluten Free, 4 Capsules per Serving, 240 Count (Pack of 1)
BulkSupplements Store
Capsules
$9.49 18d $18.97 View on Amazon
20
Doctor's Best L Arginine Supplement for Men & Women - L-Arginine 1000 mg Per Serving, Supports Nitric Oxide (NO) Levels, Sustained Plus Immediate Release - 120 Bilayer Tablets
Doctor's BEST Store
Tablets
$10.49 10d $20.99 View on Amazon
21
Doctors Best Pure L-Arginine Powder - L Arginine Supplement for Men & Women, Supports Nitric Oxide Levels & Heart Health, Blood Flow Support, Gluten Free, Vegan, Non GMO - 10.6 oz
Doctor's BEST Store
Powder
$11.39 50d $18.99 View on Amazon
22
Force Factor L-Arginine Nitric Oxide Supplement with BioPerine to Help Build Muscle and Support Stronger Blood Flow, Circulation, Nutrient Delivery, and Pumps, L-Arginine 3000mg, 3g, 150 Capsules
Force Factor Store
Capsules
$12.74 15d $12.74 View on Amazon
23
BulkSupplements.com L-Arginine HCl Capsules - Nitric Oxide Supplement, Arginine Supplement - Gluten Free, 8 Capsules per Serving (5000mg), 240 Count (Pack of 1)
BulkSupplements Store
Capsules
$12.97 25d $12.97 View on Amazon
24
Horbäach L-Arginine 4000mg| 120 Caplets | for Men and Women | Maximum Strength Nitric Oxide Precursor | Vegetarian, Non-GMO, Gluten Free Supplement
Horbäach Store
Tablets
$14.49 20d $14.49 View on Amazon
25
Pure Encapsulations L-Arginine - 1,400 mg - Support Nitric Oxide Production - Heart Health & Blood Flow - Gluten Free & Non-GMO - 180 Capsules
Pure Encapsulations Store
Capsules
$16.50 21d $49.50 View on Amazon
26
BulkSupplements.com L-Arginine Capsules - Arginine Supplement, Nitric Oxide Supplement - Gluten Free, 8 Capsules per Serving (5000mg), 240 Count (Pack of 1)
BulkSupplements Store
Capsules
$17.97 25d $17.97 View on Amazon
27
Beet Root Gummies, Beetroot & L-Arginine, Red Beets Supplements w/ Vitamin B1, B2, B3, B5, B6, Folate, B12 for Energy Boost & Circulation Support, Sugar Free Nitric Oxide Gummies, 120 Beet Chews
Nextdia Store
Gummies
$18.80 2d $37.59 View on Amazon
28
Pure Encapsulations L-Arginine - 1,400 mg - Support Nitric Oxide Production - Heart Health & Blood Flow - Gluten Free & Non-GMO - 90 Capsules
Pure Encapsulations Store
Capsules
$19.33 11d $29.00 View on Amazon
29
L Arginine 1000mg Supplement Beet Root Gummies - Double Strength, Energy Boost, Circulation Support and Stamina, Organic Chewable Beets Supplements for Men and Women, Vegan Gummy, Sugar-Free(2 Pack)
VAITE Store
Gummies
$20.50 10d $40.99 View on Amazon
30
THORNE - L-Arginine - Sustained-Release - Supports Heart Health, Nitric Oxide Production, Exercise Capacity & Optimal Blood Flow* - Third-Party Certified - Gluten, Dairy & Soy-Free - 120 Capsules
THORNE Store
Capsules3rd-party tested
$22.00 10d $44.00 View on Amazon
31
Beet Root Gummies, Beetroot & L-Arginine, Red Beets Supplements w/ Vitamin B1, B2, B3, B5, B6, Folate, B12 for Energy Boost & Circulation Support, Sugar Free Nitric Oxide Gummies, 60 Beet Chews
Nextdia Store
Gummies
$23.29 1d $23.29 View on Amazon
32
Nitric Oxide Gummies for Men and Women with L-Arginine and Beet Root - NO Gummies for Endurance and Recovery - 90 Count - Green Apple and Cinnamon Flavor - Vegan, Non-GMO, 1 Month Supply
HAVASU NUTRITION Store
Gummies
$24.49 3d $24.49 View on Amazon
33
Dr. Emil - L Arginine (3150mg) Highest Capsule Dose - Nitric Oxide Supplement for Vascularity, Endurance and Heart Health (AAKG and HCL) - 90 Tablets
DR. EMIL NUTRITION Store
Capsules
$26.95 16d $26.95 View on Amazon
34
L-Arginine 1800mg and Pine Bark Extract 100mg - Nitric Oxide Supplement for Men - Performance Supplement for Men's Health - 90 Count - Endurance, Recovery Support - Vegan, Non-GMO Capsules
HAVASU NUTRITION Store
Capsules
$29.99 9d $29.99 View on Amazon

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