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L-Citrulline Powder

L-Citrulline Powder

Better blood flow is the difference between finishing strong and fading out. L-Citrulline raises nitric oxide so oxygen and nutrients get where your body needs them.

Serving Size Update: L-Citrulline now delivers 3g per scoop.
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L-Citrulline Powder
$24.99
$24.99

Serving Size Update: L-Citrulline now delivers 3g per scoop.
NUTRABIO QUALITY GUARANTEE

NUTRABIO QUALITY GUARANTEE

Made in the USA • Third-Party Tested • Fully Transparent Labels • Fully Dosed Formulas

Better blood flow is the difference between finishing strong and fading out. L-Citrulline raises nitric oxide so oxygen and nutrients get where your body needs them.

Description

How To Use

Key Ingredients

Dietary Restrictions

Delivery & Returns

SKU: 80048
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Circulation Is the Foundation

Every system in your body depends on blood reaching where it is needed. L-Citrulline supports nitric oxide production so circulation improves, which means healthy cardiovascular function and steady energy day to day, and stronger endurance, fuller pumps, and faster recovery when you train.

3g
L-Citrulline
ZERO
Fillers or Excipients
100%
Vegetarian

How NutraBio Is Better

Fully transparent labels, no proprietary blends, and third-party testing on every batch — so you always know exactly what you're getting. Here's how NutraBio compares.

L-Citrulline PowderNutraBio
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Premium Fermented Form
100% Pure L-Citrulline
3rd-Party Batch Tested
In-House Manufactured

The Science-Backed Edge

Every ingredient is chosen with purpose and backed by science to deliver meaningful results. Whether it’s wellness or performance, each formula is fully dosed and built with innovation to help your body function at its highest potential.

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Live Without Compromise

We are dedicated to helping you achieve real results by ensuring every product is made with the highest-quality ingredients and uncompromising standards. Our commitment to excellence is built to help you reach your potential and live without compromise.

  • A black droplet icon is centered inside a hexagon with an arrow looping around one corner, suggesting recycling or reusing liquid or oil. The design is simple and monochrome.

    Healthy Blood Circulation

    Nitric oxide relaxes the vessel walls and widens the pathway blood travels, improving flow throughout the body.‡

  • Cardiovascular Health

    Cardiovascular Health

    Nitric oxide production plays a central role in vascular function and in maintaining blood pressure already within a normal range.‡

  • Improves Nutrient and Oxygen Delivery

    Improves Nutrient and Oxygen Delivery

    Better flow means the fuel your tissue depends on arrives more efficiently, when and where it is needed.‡

  • Endurance and Performance Output

    Endurance and Performance Output

    Nitric oxide widens the vessels feeding working muscle, improving oxygen delivery and waste clearance during exercise so you can maintain output across more sets and longer efforts.‡

  • Supports Fuller Muscles

    Supports Fuller Muscles

    More blood volume reaching working muscle during training produces the fullness you feel and see.‡

  • Aids Recovery Between Training Sessions

    Aids Recovery Between Training Sessions

    Improved circulation helps clear the metabolic byproducts that accumulate during hard training.‡
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What Better Circulation Gives You

Energy That Holds

Oxygen reaching tissue efficiently means steadier energy through a full day and more in the tank when you train.

Performance You Feel

More blood volume to working muscle means stronger output across more sets and the fullness that comes with it.

Recovery That Keeps Up

Faster clearing of the byproducts of hard training means less soreness lingering and shorter turnaround between sessions.

Overall rating: 5.0 / 5 from 38 reviews.

AI Generated Review Summary

Summary topics

Review topics: [quality, dose, pump, taste, workouts, amino acid, supplement].

Review highlights

Reviews

You can trust Nutra as

"You can trust Nutra as a good company - decent prices and a great catalog of products"

— Rodriguez (5/5)

Easy to use - works as intented

"L-Citrulline has been a great addition to my custom morning pre-workout drink. I prefer to use my own blends to pre-bought mixes to control sugar and caffeine. Mixes easily and is tasteless."

— Kevin B. (5/5)

Excellent product

"I have been taking NB citrulline daily for 10 years. Works great I mix this with my morning pre workout drink. Gives me enery and pump."

— Bob (5/5)

Pump you up

"I love the unflavored 2 gr dose as you can add more if you need with your current pre-workout. I also mix this with my base amino."

— Sean D. (5/5)

Good stuff

"It seems to definately 100% increase blood flow and vascularity. I check my sugar and blood definately seems thinner when I use citrulline. I would not high does it if your in a proffesion where potential bleeding control may become a factor."

— Smalt (5/5)

CITRULLINE POWDER

"The EXACT PUMP I was expecting! 💪"

— Israel D. (5/5)

Great product

"I get noticeable better pumps when I take two scoops pre workout"

— William L. (5/5)

Great non essential Amino Acid

"Great for extra Nitric Oxide in your system for better blood movement. Makes me feel more energized when I use this before and after my workouts."

— Castagna (5/5)

Trying this and that

"Used this as a stack to increase NO in bloodstream. Finding my mix of supplements"

— Jones (5/5)

L-Citruline

"As part of my efforts to increase muscle and slim down in my 60s, L-Citruline powder has become a fixture in many of my smoothies."

— LANDO (5/5)

Q&A

Frequently Asked Questions

How much L-Citrulline should I take?

Take 3 to 6 grams of L-Citrulline daily. Each scoop of NutraBio L-Citrulline delivers 3 grams, so take one scoop for daily circulation and wellness support, or two scoops before training. Most exercise research on L-Citrulline uses roughly 6 grams per dose, which is what two scoops delivers.

When is the best time to take L-Citrulline?

Take L-Citrulline 30 to 45 minutes before training to support blood flow and exercise performance. For overall circulation and cardiovascular support, any time of day works and daily consistency matters more than timing. NutraBio L-Citrulline is unflavored, so it can be taken with water or added to any beverage.

What is the difference between L-Citrulline and L-Arginine?

L-Citrulline raises nitric oxide more effectively than L-Arginine. Arginine is largely broken down in the gut and liver before it reaches circulation, which limits how much is available to the body. L-Citrulline bypasses that breakdown and converts to arginine in the kidneys, producing a stronger nitric oxide response from the same or smaller dose.

Does L-Citrulline give you a pump?

Yes. L-Citrulline supports the muscle pump by raising nitric oxide production, which relaxes and widens blood vessels so more blood reaches working muscle during training. Take two scoops of NutraBio L-Citrulline, 6 grams, roughly 30 to 45 minutes before your session for pump support.

Are there any side effects of L-Citrulline?

L-Citrulline is well tolerated at typical doses and is not associated with the digestive discomfort common to high doses of L-Arginine. NutraBio L-Citrulline contains a single fermented ingredient with no fillers, flavors, or flow agents. Anyone taking blood pressure medication or nitrates should speak with a physician before use.