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2025's Top 9 L-Citrulline Supplements
Find out what to look for in a quality L-Citrulline supplement and what to watch out for
What is L-Citrulline?
Citrulline is a nonessential amino acid, meaning your body can produce it naturally. However, you can increase citrulline levels by eating foods containing citrulline or by taking an L-citrulline supplement.
After consumption, your body transforms L-citrulline into another type of amino acid, L-arginine. Strangely, supplementing with L-citrulline has been shown to raise L-arginine levels more effectively than taking L-arginine itself.
What Does L-Citrulline Do?
After it is changed to L-arginine, its primary ability is to improve blood flow. By creating nitric oxide, it is able to dilate the blood vessels, creating wider pathways for blood to flow. As you can imagine, this results in benefits to the entire body.
Benefits of L-Citrulline
✔️ Promotes Cardiovascular Health
✔️ Improves Exercise Performance
✔️ Combats Fatigue
✔️ Increases Levels of Growth Hormone
Research
Some research suggests that L-citrulline’s ability to improve blood flow may be able to decrease symptoms of mild ED and improve the ability to maintain an erection.
A Note About Consistency
L-citrulline is not a one and done supplement. Research shows that most of the benefits only appear after a minimum of 7 days supplementation.
Natural Sources of L-Citrulline
L-citrulline is difficult to get in high amounts from natural sources, but here is a short list of foods which can provide some amount of this powerful amino acid.
✔️ Watermelon
✔️ Cucumber
✔️ Pumpkins
✔️ Bitter Melon
2025's Top 9 L-Citrulline Supplements
1. Quality
All the products we recommend have been third party tested to ensure they meet our high standards of quality.
2. Cost
Getting your hands on a high quality supplement doesn’t have to break the bank. While our top priority will always be quality, we understand that price factors into many people’s buying decisions.
3. Brand Reputation
To ensure that your buying experience is a pleasant one, we recommend only products from companies with strong reputations for providing quality customer service and prompt shipping.
Nutricost L-Citrulline is the #1 Rated L-Citrulline Supplement, as it is high quality and half the price of its competitors. Nutricost L-Citrulline that offers 1500MG of L-Citrulline in each serving. Click Here for Lowest Price
Uniquely, Nutricost is one of the few companies that control the full chain of manufacturing, from sourcing to manufacturing in an FDA-registered facility to warehousing and fulfillment, ensuring strict quality standards are met. Nutricost also offers exceptional customer support for all of its products.
Priced under $18, Nutricost L-Citrulline comes with 90 servings, which is just $.20 per serving. With Nutricost, you can be assured that this product does NOT contain ANY extra ingredients, fillers, or preservatives.
Nutricost L-Citrulline comes with a 120-day, no-questions-asked, money-back guarantee – the best guarantee on the market!
750mg of L-Citrulline Per Capsule, 1500mg Recommended Serving Size
- 180 Capsules Per Bottle
- High Quality L-Citrulline, Non-GMO, Gluten Free
- Made in a GMP Compliant, FDA Registered Facility
- Non-GMO and Gluten Free
*Individual Results May Vary - Ratings are based on Society Health Ranking System and do not necessarily reflect typical results from the use of these products. We encourage consumers to research by visiting each product's website for more information.
Type Zero L-Citrulline is the #2 Rated L-Citrulline Supplement, as it is high quality and competitively priced. Type Zero L-Citrulline offers 3000MG of L-Citrulline in each serving. Click Here for Lowest Price
Priced under $17, Type Zero L-Citrulline comes with 100 servings, which is just $.17 per serving. With Type Zero, you can be assured that this product does NOT contain ANY extra ingredients, fillers, or preservatives.
- 3 Grams of L-Citrulline Per Serving (100 Servings)
- No Malate, Just Pure Base Powder
- 300 Grams of L-Citrulline Powder Per Bottle
- Zero Sugar, Keto Friendly, Gluten Free, Non-GMO and Vegetarian Friendly
- Manufactured In an NSF Certified, GMP Compliant & FDA Registered Facility
*Individual Results May Vary - Ratings are based on Society Health Ranking System and do not necessarily reflect typical results from the use of these products. We encourage consumers to research by visiting each product's website for more information.
- High Quality L-Citrulline
- 2500mg L-Citrulline Per Serving, 1250mg Per Tablet
- 240 Tablets Per Bottle for 120 Servings
- Each Batch is Tested by Independent, ISO-Accredited Laboratories
- Manufactured in a GMP Compliant, FDA Registered Facility
*Individual Results May Vary - Ratings are based on Society Health Ranking System and do not necessarily reflect typical results from the use of these products. We encourage consumers to research by visiting each product's website for more information.
- 3rd Party Lab Tested for Purity & Quality.
- 2000 mg of L-Citrulline per Serving - 120 Tablets per Bottle.
- Non-GMO & Gluten-Free.
- Proudly Made in USA, GMP Compliant, FDA Registered Facility.
- No Artificial Color, Flavor, or Sweetener, No Preservatives, No Sugar, No Milk, No Corn, No Soy, No Egg, No Lactose, No Gluten, No Wheat, No Yeast, No Fish. Sodium Free.
*Individual Results May Vary - Ratings are based on Society Health Ranking System and do not necessarily reflect typical results from the use of these products. We encourage consumers to research by visiting each product's website for more information.
- No Malate, Just Pure Base Powder
- 3 Grams of L-Citrulline Powder Per Serving (200 Servings)
- 600 Grams of L-Citrulline Powder Per Bottle
- Non-GMO and Gluten Free
- Made in a GMP Compliant, FDA Registered Facility
*Individual Results May Vary - Ratings are based on Society Health Ranking System and do not necessarily reflect typical results from the use of these products. We encourage consumers to research by visiting each product's website for more information.
*Individual Results May Vary - Ratings are based on Society Health Ranking System and do not necessarily reflect typical results from the use of these products. We encourage consumers to research by visiting each product's website for more information.
- SUPPORTS PROTEIN METABOLISM*: This non-essential amino acid is an important intermediate in the urea cycle, functioning along with other amino acids to rid the body of ammonia, a byproduct of protein metabolism.*
- VEGAN CAPSULES/HEALTHY IMMUNE SYSTEM FUNCTION*: Citrulline also plays an important role in the healing process and in the maintenance of a healthy immune system.*
- CERTIFICATIONS/CLASSIFICATIONS: Dairy Free, Egg Free, Kosher, Made without Gluten, Non-GMO, Nut Free, Soy Free, Vegan/Vegetarian
- GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation).
- Packaged in the USA by a family owned and operated company since 1968
- During the summer months products may arrive warm but Amazon stores and ships products in accordance with manufacturers' recommendations, when provided.
*Individual Results May Vary - Ratings are based on Society Health Ranking System and do not necessarily reflect typical results from the use of these products. We encourage consumers to research by visiting each product's website for more information.
- 60 Servings per Bottle, 2 Tablets Per Serving
- Non-GMO, Gluten Free, Third Party Tested
- Manufactured in accordance with GMP Standards
- Proudly made in the USA with Guaranteed Purity & Potency
*Individual Results May Vary - Ratings are based on Society Health Ranking System and do not necessarily reflect typical results from the use of these products. We encourage consumers to research by visiting each product's website for more information.
- Helps support nitric oxide metabolism & vascular health
- Helps support muscle protein synthesis and relieve muscle fatigue
- Helps improve circulation & muscle maintenance
- Non-GMO, Gluten Free, Soy Free, Vegan
*Individual Results May Vary - Ratings are based on Society Health Ranking System and do not necessarily reflect typical results from the use of these products. We encourage consumers to research by visiting each product's website for more information.
Sources
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https://selfhacked.com/blog/health-benefits-of-l-citrulline/