• Free-form L-Citrulline supports healthy nitric oxide levels by serving as a precursor to L-arginine, helping your body produce nitric oxide more efficiently.
• Each tablet delivers 1000 mg of L-Citrulline, offering a convenient, athlete-friendly dose to support performance during HIIT and other short-rest, high-intensity workouts.
• Promotes vasodilation and blood flow, which may help with erectile function and overall vascular health.
• With age-related declines in nitric oxide, this 90-tablet formula helps round out amino acid intake and support cardiovascular health.
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Natural Factors, L-Citrulline, 1000 mg, 90 Tablets
Size
90
tablets
UPC
627765028690
Best Before
11/2029
24 people have viewed this item in the last 7 days
About this item
Suggested Use
Recommended adult dose: 3 tablets 1 time daily or as directed by a health care practitioner.
Ingredients
Each tablet contains:
L-citrulline
1000
mg
Non-medical Ingredients:
Dicalcium phosphate dihydrate, microcrystalline cellulose, hydroxypropylcellulose, coating (carbohydrate gum, glycerin), stearic acid, vegetable grade magnesium stearate (lubricant), silica.
Description
Natural Factors L-Citrulline is a free-form amino acid supplement used to support healthy nitric oxide levels in the bloodstream. By serving as a precursor to the amino acid L-arginine, L-citrulline helps the body produce nitric oxide more efficiently. Nitric oxide has many critical functions in the body through its role in helping blood vessels relax and expand.
L-citrulline is a popular workout supplement for athletes, fitness enthusiasts, and bodybuilders. It supports increased athletic performance during intense anaerobic exercise with short rest periods, such as high-intensity interval training (HIIT) and weightlifting. L-citrulline is also used by men to improve symptoms of erectile dysfunction through the dilation of blood vessels and promoting healthy blood flow.
The body’s ability to generate nitric oxide decreases in older age, which can affect arterial health and function. Supplementing with L-citrulline is a convenient way to round out your amino acid intake, support L-arginine production, and help improve nitric oxide synthesis. This high-potency supplement contains 1000 mg of L-citrulline per tablet, taken three times per day to maintain a steady intake. It is made naturally through bacterial fermentation and is a non-GMO, vegan formula.
- Supports nitric oxide (a vasodilator) levels in the blood stream.
- Supports an increase in athletic performance in high-intensity anaerobic exercise with short rest periods.
- Source of a non-essential amino acid involved in muscle protein synthesis.
Frequently Asked Questions
What is Natural Factors and is it a reliable Canadian supplement brand?
Natural Factors is one of Canada's largest supplement manufacturers, founded in 1955 by Jack and Rona Katz in British Columbia and still 100% Canadian family-owned. The company controls every production stage from raw material sourcing to finished product. Its facility holds TGA certification from Australia's Therapeutic Goods Administration, one of the world's strictest supplement manufacturing standards. All products are ISURA certified — independently tested for 800+ contaminants including pesticides and heavy metals — and Natural Factors conducts four rounds of product testing, double the industry average of two.
What sets Natural Factors apart from other supplement brands?
Natural Factors' most distinctive quality is vertical integration: the company grows its own raw herbs on 1,000+ acres of certified organic farmland in BC's Okanagan Valley, then processes and manufactures in-house. Most supplement brands source raw materials from external suppliers with no direct agricultural control. Natural Factors also uses ISURA third-party testing, a Canadian standard that screens for over 800 contaminants, well beyond typical heavy-metal panels. B Corp certification further reflects a documented commitment to environmental and social accountability, not just a marketing claim.
What makes Natural Factors different from other Canadian supplement manufacturers?
Natural Factors holds TGA certification from Australia's Therapeutic Goods Administration — one of the world's most rigorous pharmaceutical manufacturing standards, rarely earned by Canadian brands and far exceeding most North American certification requirements. Its ISURA testing program screens every product for 800+ contaminants, and it conducts four rounds of quality testing per product versus the industry standard of two. The company also operates its own farm in the Okanagan Valley for select botanical ingredients — a level of vertical integration uncommon among supplement manufacturers — and has been family-owned for over 70 years.
The information provided above is for reference purposes only and has not been reviewed or approved by Health Canada. It does not constitute medical advice and should not replace consultation with a qualified healthcare professional.
Caution
Consult a health care practitioner prior to use if you are pregnant or breastfeeding. Keep out of the reach of children.
Disclaimer
You should not use the information or services on this Site to diagnose or treat any health issues or for prescription of any medication or other treatment.
Always check the product label or packaging prior to using any product. If there are discrepancies, customers should follow the information provided on the product label or packaging.
Natural Factors, L-Citrulline, 1000 mg, 90 Tablets
Size
90
tablets
UPC
627765028690
Best Before
11/2029
24 people have viewed this item in the last 7 days
$28.99
Quantity
Not enough inventory in stock
Purchase limit exceeded
In-Store Purchases
In stock at LIFEPLUS Natural Health
#1825 - 4720 Mcclelland Rd, Richmond, BC
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Today, May 29
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