SKU: 36308717643

Pure L-arginine Powder - 300 Grams

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Description

Pure L-arginine Powder - 300 GramsRead more about this product What is Doctors Best L Arginine Powder? Doctors Best L Arginine Powder helps support athletic endurance and helps boost nitric oxide production. L Arginine is a necessary precursor to creatine which helps supply energy to all of the cells of the body. L Arginine also helps regulate blood pressure, helps improve cardiovascular health, helps support a healthy immune system, helps improve blood sugar regulation, and helps

Read more about this product

What is Doctor’s Best L-Arginine Powder?
Doctor’s Best L-Arginine Powder helps support athletic endurance and helps boost nitric oxide production. L-Arginine is a necessary precursor to creatine which helps supply energy to all of the cells of the body. L-Arginine also helps regulate blood pressure, helps improve cardiovascular health, helps support a healthy immune system, helps improve blood sugar regulation, and helps support brain health. This Doctor’s Best item contains no added colors, flavors, fillers, additives or unnecessary ingredients.

How does it work?
L-Arginine is required to synthesize nitric oxide in the human body. Its main job is the signal the blood vessels to relax and expand. When the blood vessels dilate, they allow more blood, oxygen and nutrients to flow to the organs and muscles. Nitric oxide helps to product endothelial relaxation factor, which is needed by the arterial system for expansion and contraction with each heartbeat. Arginine-derived nitric oxide has been shown to help increase mental acuity, improve overall circulation, helps build muscle mass, increase muscle growth and improve endurance.

Why should I take Doctor’s Best L-Arginine Powder?
L-Arginine is required to synthesize nitric oxide in the human body. Nitric oxide is a powerful neurotransmitter that helps blood vessels relax and also improves circulation. As you age, nitric oxide production falls. Studies show that an individual that is 40 years old is likely only making about half or less the amount of nitric oxide than they were at the age of 20. While L-Arginine can be found in many foods, the average daily intake only meets the minimum requirements to create the necessary amount of nitric oxide. Clinical studies have shown that that use of L-Arginine during exercise showed an improvement in anaerobic threshold (also known as lactate threshold) and ventilatory threshold (at which breathing becomes labored), which lowered oxygen cost during exercise and extended time to exhaustion during severe-intensity exercise. When you supplement with Doctor’s Best L-Arginine, you can work out longer as you achieve other health benefits.

Doctor’s Best L-Arginine Powder helps support athletic endurance and helps boost nitric oxide production.
L-Arginine is a necessary precursor to creatine which helps supply energy to all of the cells of the body.
L-Arginine also helps regulate blood pressure, helps improve cardiovascular health, helps support a healthy immune system, helps improve blood sugar regulation and helps support brain health.
This Doctor’s Best item contains no added colors, flavors, fillers, additives or unnecessary ingredients.
Gluten Free, Non-GMO, Vegetarian, Vegan.


What is In

Doctor's Best
Pure L-Arginine Powder - 300g
Food supplement in powder form, containing L-Arginine
Nutrition Facts
Serving Size: 1 Scoop (6g)
Servings Per Container: 50
  Amount
Per 100g
Amount
Per Serving
%RI*
L-Arginine HCl 100 g 6 g

*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

Ingredients: L-Arginine HCl

Other ingredients: None.

Warnings: For adults only. Consult physician if pregnant/nursing, taking medication, or have a medical condition. Do not use if you have a myocardial infarction or have established coronary artery disease. Keep out of reach of children. Non-GMO, Gluten Free, Soy Free, Vegan. Store in a cool dry place.

Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
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SKU: 36308717643

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4.7 ★★★★★
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Kendall Mceniry
Natrona Heights, US
★★★★★ 5
Only toothpaste in my household
Flavor Name: 1. Sensitive Mint, Size: 5.25 Ounce (Pack of 1)
Love this toothpaste, no fluoride, great taste, fresh breath. Great value for the price as the tube is quite large. Only downfall if that it doesn't foam well which you will find with any toothpaste not full of nasty chemicals. Only thing my family uses.
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Reviewed in the United States on May 11, 2026
A
Verified Purchase
Amazon Customer
Lake Worth, US
★★★★★ 5
Give it a few weeks! It works!
Flavor Name: 1. Sensitive Mint, Size: 4 Ounce (Pack of 1)
I've been brushing with this toothpaste twice a day for about 3 weeks. I can see an improved whitening. My hairdresser, new one I hadn't met before, told me I have perfect teeth. Actually they're not that straight but the color of my teeth makes up for the misalignment of some of them. Flavor of toothpaste is good. Didn't cause any sensitivity for me.
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Reviewed in the United States on May 8, 2026
A
Verified Purchase
Amanda Hammond
Alexandria, US
★★★★★ 5
Love this!
Flavor Name: 1. Sensitive Mint, Size: 4 Ounce (Pack of 1)
This toothpaste does not foam but my mouth has never felt cleaner or fresher! The taste is minty fresh and I have noticed a difference in the whiteness of my teeth since I started using it! Very effective and I highly recommend!
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Reviewed in the United States on May 9, 2026
T
Verified Purchase
TeeB
Boise, US
★★★★★ 4
Baking soda never works out well
Flavor Name: 1. Sensitive Mint, Size: 4 Ounce (Pack of 1)
I don't know why I decided to chance it but it didn't take long for my teeth to start aching. I realized baking soda might be the cause of my toothache issues when I switched between a few and realized the baking soda ones were accompanied by aching. I think I went with this because it claims to be for sensitivity and I thought the nhap would help whatever the baking soda affected but not the case. If you have tooth ache, consider it might actually be the toothpaste and don't just go looking for "sensitive" labels. This might work in combination with other toothpaste. I.e. not multiple times a day but once a day and a different one for other brushing. I've noticed not being as able to tell when it's been a while since I brushed. This was the main change so it might be effective at cleaning. The tube is metal and hard to press but the paste consistency is less firm than others so it works out. It didn't take much to get the paste out. It gives a light foam. The taste is not sweet. It's tolerable but borders on bad.
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Reviewed in the United States on May 16, 2026
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Amy Oyer
Lowell, US
★★★★★ 5
Good for exfoliating
Color: Beige (4 Packs)
These are great for saving and using soap slivers. I can't stand to throw out something useful but once they get too small they're hard to hold onto. I had a mesh bag but it started to come apart and I thought these would hold up better. These bags are thick and sturdy. They're a little stiff at first but softened up quickly. They're great for exfoliating. The only change I would like to see is the wood closing bead changed to a locking clip as it slides open all the time.
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Reviewed in the United States on March 17, 2026

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