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We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
DR BEST Pure L-Arginine Powder 300 g is a high-quality amino acid supplement designed to support healthy blood flow, cardiovascular health, athletic performance, and muscle recovery. L-Arginine is a conditionally essential amino acid that plays a vital role in nitric oxide production, which helps relax and widen blood vessels, improving circulation and oxygen delivery throughout the body.
L-Arginine Amino Acid Powder
Nitric Oxide Booster Powder
Pre-Workout Performance Supplement
Muscle Recovery & Endurance Powder
L-Arginine 300 g Pure Powder
Pure L-Arginine – A naturally occurring amino acid known for enhancing nitric oxide levels, supporting blood flow, and promoting stamina and recovery.
No artificial flavors, preservatives, or sweeteners (check label for specifics).
Promotes healthy blood circulation and cardiovascular function
Supports muscle strength, endurance, and recovery
Helps boost nitric oxide production for better oxygen delivery
May support male reproductive health and vitality
Aids in nutrient transport to muscles during and after workouts
Unflavored powder allows easy mixing with water or shakes
L-Arginine is converted in the body into nitric oxide (NO), a compound that relaxes and dilates blood vessels. This leads to improved circulation, better oxygen and nutrient delivery to muscles, and enhanced exercise performance. It also supports heart health and overall metabolic functions.
100% pure L-Arginine with no unnecessary additives
Powder form for faster absorption and customizable dosage
Ideal for athletes, fitness enthusiasts, and those seeking cardiovascular support
Trusted DR BEST quality for purity and effectiveness
Suitable for pre-workout or daily health supplementation
Adults looking to support cardiovascular and circulatory health
Athletes and gym-goers for enhanced performance and recovery
Individuals with increased amino acid requirements
Those who prefer a clean, unflavored powder supplement
Mix one scoop (as directed on the label) with water or juice and stir well. Best consumed on an empty stomach or 30–45 minutes before workouts for performance benefits. Can also be taken between meals or before bedtime as directed.
Typically 3–6 g daily, depending on individual needs and health goals. Always follow the product label or a healthcare professional’s advice for exact dosage.
For adult use only
Consult a healthcare professional if pregnant, nursing, or taking medication
Do not exceed the recommended daily intake
People with low blood pressure or heart conditions should seek medical advice before use
Store in a cool, dry place away from direct sunlight
Keep out of reach of children
Generally well tolerated when taken as directed
High doses may cause mild gastrointestinal discomfort (e.g., bloating, diarrhea)
Discontinue use and consult a healthcare professional if adverse effects occur
Net Weight: 300 g
Form: Unflavored Powder
Suitable for vegetarians and fitness enthusiasts
Storage: Keep tightly sealed in a dry, cool place
Q1. What is L-Arginine used for?
It supports blood flow, cardiovascular health, workout performance, and recovery.
Q2. When is the best time to take it?
Usually 30–45 minutes before workouts or on an empty stomach for better absorption.
Q3. Can I mix it with protein shakes?
Yes, it can be mixed with water, juice, or protein shakes.
Q4. Is it suitable for daily use?
Yes, when taken within the recommended dosage.
The content is purely informative and educational in nature and should not be construed as medical advice. Please use the content only in consultation with an appropriate certified medical or healthcare professional.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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