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L-Arginine

Discover the power of better blood flow and enhanced endurance with our premium selection of L-Arginine supplements, trusted by Canadians seeking support for heart health, physical performance, and vascular function. Whether you’re looking to fuel your workouts, manage blood pressure, or promote better recovery, L-Arginine offers a clinically supported solution backed by decades of research.

L-Arginine is a conditionally essential amino acid that helps your body produce nitric oxide, a compound critical for widening blood vessels and improving circulation. This boost in vascular performance translates to improved energy, focus, and overall wellness — especially as you age or push your body through fitness routines.

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AOR Arginine 180 Veggie Caps

AOR
Original price $38.99 CAD - Original price $38.99 CAD
Original price
$38.99 CAD
$38.99 CAD - $38.99 CAD
Current price $38.99 CAD
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AOR Arginine 180 Veggie Capsules AOR Arginine is L-arginine, a conditionally essential amino acid and the main precursor in the body in the synthes...

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Original price $38.99 CAD - Original price $38.99 CAD
Original price
$38.99 CAD
$38.99 CAD - $38.99 CAD
Current price $38.99 CAD
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Natural Factors L-Arginine 1000mg 90 Tabs

Natural Factors
Original price $20.99 CAD
Original price $20.99 CAD - Original price $20.99 CAD
Original price $20.99 CAD
Current price $15.74 CAD
$15.74 CAD - $15.74 CAD
Current price $15.74 CAD
in stock

Product Description Natural Factors L-Arginine 1000 mg provides a high-potency source of the conditionally essential amino acid L-arginine to suppo...

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Original price $20.99 CAD
Original price $20.99 CAD - Original price $20.99 CAD
Original price $20.99 CAD
Current price $15.74 CAD
$15.74 CAD - $15.74 CAD
Current price $15.74 CAD
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Natural Factors L-Arginine 500mg 90 Veggie Caps

Natural Factors
Original price $9.99 CAD
Original price $9.99 CAD - Original price $9.99 CAD
Original price $9.99 CAD
Current price $7.49 CAD
$7.49 CAD - $7.49 CAD
Current price $7.49 CAD
in stock

Product Description Natural Factors L-Arginine 500 mg provides a pure source of the amino acid L-arginine in convenient vegetarian capsules. L-argi...

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Original price $9.99 CAD
Original price $9.99 CAD - Original price $9.99 CAD
Original price $9.99 CAD
Current price $7.49 CAD
$7.49 CAD - $7.49 CAD
Current price $7.49 CAD
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NOW L-Arginine 1000MG 120 Tabs

NOW
Original price $39.99 CAD
Original price $39.99 CAD - Original price $39.99 CAD
Original price $39.99 CAD
Current price $25.99 CAD
$25.99 CAD - $25.99 CAD
Current price $25.99 CAD
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NOW L-Arginine 1000MG 120 Tablets L-Arginine is a conditionally essential basic amino acid involved primarily in urea metabolism and excretion as w...

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Original price $39.99 CAD
Original price $39.99 CAD - Original price $39.99 CAD
Original price $39.99 CAD
Current price $25.99 CAD
$25.99 CAD - $25.99 CAD
Current price $25.99 CAD
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NOW Sports Arginine & Citrulline 120 Caps

NOW
Original price $36.99 CAD
Original price $36.99 CAD - Original price $36.99 CAD
Original price $36.99 CAD
Current price $24.04 CAD
$24.04 CAD - $24.04 CAD
Current price $24.04 CAD
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NOW Foods Arginine 500mg & Citrulline 250mg Amino Acids 240 Vegetable Capsules Arginine and citrulline are two amino acids that are integral t...

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Original price $36.99 CAD
Original price $36.99 CAD - Original price $36.99 CAD
Original price $36.99 CAD
Current price $24.04 CAD
$24.04 CAD - $24.04 CAD
Current price $24.04 CAD
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Metagenics ArginCor 700 Grams

Metagenics
Original price $68.75 CAD - Original price $68.75 CAD
Original price
$68.75 CAD
$68.75 CAD - $68.75 CAD
Current price $68.75 CAD
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Product DescriptionArginCor® is a medical-food formulation designed to support endothelial function, wound care and healthy blood flow. It features...

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Original price $68.75 CAD - Original price $68.75 CAD
Original price
$68.75 CAD
$68.75 CAD - $68.75 CAD
Current price $68.75 CAD
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NOW Sports L-Arginine & L-Ornithine 100 Caps

NOW
Original price $31.99 CAD
Original price $31.99 CAD - Original price $31.99 CAD
Original price $31.99 CAD
Current price $20.79 CAD
$20.79 CAD - $20.79 CAD
Current price $20.79 CAD
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NOW L-Arginine & L-Ornithine 100 Capsules Arginine and Ornithine combines two essential amino acids into one optimal supplement. Arginine is ne...

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Original price $31.99 CAD
Original price $31.99 CAD - Original price $31.99 CAD
Original price $31.99 CAD
Current price $20.79 CAD
$20.79 CAD - $20.79 CAD
Current price $20.79 CAD
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NOW L-Arginine 500 mg 250 Veggie Caps

NOW
Original price $29.99 CAD
Original price $29.99 CAD - Original price $29.99 CAD
Original price $29.99 CAD
Current price $19.49 CAD
$19.49 CAD - $19.49 CAD
Current price $19.49 CAD
Out of stock

Supports protein and creatine synthesis, nitric oxide production Helps the detoxification of ammonia in the body Conditionally Essential Amino Aci...

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Original price $29.99 CAD
Original price $29.99 CAD - Original price $29.99 CAD
Original price $29.99 CAD
Current price $19.49 CAD
$19.49 CAD - $19.49 CAD
Current price $19.49 CAD
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NOW Sports L-Arginine Powder 454g

NOW
Original price $50.99 CAD
Original price $50.99 CAD - Original price $50.99 CAD
Original price $50.99 CAD
Current price $33.14 CAD
$33.14 CAD - $33.14 CAD
Current price $33.14 CAD
Out of stock

NOW L-Arginine Powder 454g Kosher Non-GMO Made W/O Gluten L-Arginine is a conditionally essential basic amino acid involved primarily in urea met...

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Original price $50.99 CAD
Original price $50.99 CAD - Original price $50.99 CAD
Original price $50.99 CAD
Current price $33.14 CAD
$33.14 CAD - $33.14 CAD
Current price $33.14 CAD
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Frequently asked question About L-Arginine

What is L-Arginine used for?

L-Arginine is used to support cardiovascular health, improve blood circulation, enhance exercise performance, and promote sexual health.

How does L-Arginine affect nitric oxide production?

L-Arginine is a direct precursor to nitric oxide, which relaxes blood vessels and improves circulation throughout the body.

Can L-Arginine help lower blood pressure?

Yes. By promoting vasodilation, L-Arginine may help reduce elevated blood pressure when used regularly.

Is L-Arginine good for pre-workout performance?

Absolutely. It improves blood flow to muscles, leading to better pumps, strength, and endurance during workouts.

Can L-Arginine help with erectile dysfunction?

Yes. Improved blood flow from nitric oxide production can support erectile function in men with circulation-related issues.

What’s the best time to take L-Arginine?

For workout support, take it 30–60 minutes before exercise. For cardiovascular benefits, it can be taken morning or evening.

What is the recommended dosage of L-Arginine?

Dosages typically range from 2,000 to 6,000 mg daily, depending on your health goals. Start low and adjust as needed.

Are there any side effects of L-Arginine?

Some people may experience bloating or digestive discomfort. Taking it with food or splitting the dose can help.

Can I stack L-Arginine with other supplements?

Yes. It stacks well with citrulline, creatine, BCAAs, and pre-workout blends for enhanced results.

Is L-Arginine suitable for women?

Yes. Women can benefit from L-Arginine’s cardiovascular, energy, and immune-supportive effects.

Is there a difference between L-Arginine and L-Citrulline?

L-Citrulline is converted into L-Arginine in the body and may provide longer-lasting nitric oxide support.

Are your L-Arginine supplements vegan-friendly?

Yes, many of our options use plant-based capsules and ingredients. Look for vegan certification on the product page.

Does L-Arginine help with wound healing?

Yes. It supports collagen synthesis and immune function, which aids in tissue repair and recovery.

Can I take L-Arginine if I’m on medication?

Consult your healthcare provider, especially if you're taking blood pressure or erectile dysfunction medications.

How long does it take to see results from L-Arginine?

Some users notice improved pump or circulation within days; cardiovascular and immune benefits may build gradually.

Is L-Arginine safe for long-term use?

Yes, when used as directed and with periodic breaks or adjustments if needed.

Do you offer L-Arginine powder or tablets?

Yes, we carry a variety of formats to suit your preference, including flavored powders and easy-to-swallow capsules.

Can I take L-Arginine while fasting?

Yes, it's often used in fasted workouts or wellness routines to boost circulation without breaking a fast.

Do you ship L-Arginine across Canada?

Yes! We ship nationwide, and all orders over $54.99 receive free shipping.

Do you price match L-Arginine supplements?

Absolutely. We offer a Price Match Guarantee on all products, including L-Arginine.

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On Order Over CAD 54.99+

Talk To our Nutritionist

+1 (905) 278-7237

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We Do offer Price Matching

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Available at 225 Lakeshore Blvd East, Mississauga