Selecting the right pre-workout can elevate your gym performance. If you’re chasing muscle pumps and better workout results, nitric oxide boosters like Citrulline Malate and Nitrosigine often come up as top choices.
This article breaks down these two ingredients, comparing how they work, how well they’re absorbed, and their overall impact. Bucked Up prioritizes clear information, so you can decide which option fits your training needs.
What Drives Muscle Pumps: A Look at Nitric Oxide Boosters
Muscle pumps are more than just a visual boost. That tight, full feeling during a workout comes from increased blood flow, delivering nutrients to your muscles and clearing out waste. This improved circulation supports better performance and may aid muscle growth over time.
Nitric oxide, or NO, is key to this process. It acts as a vasodilator, relaxing blood vessels to allow more oxygen and nutrients to reach muscles while removing byproducts like lactate. This directly affects your ability to push harder in workouts.
Different nitric oxide boosters enhance NO production in unique ways. Some, like L-arginine, serve as direct building blocks for NO. Others, such as citrulline compounds, convert to arginine indirectly, avoiding certain metabolic hurdles. Advanced options like Nitrosigine focus on efficient delivery for stronger effects at smaller doses.
Not all boosters work the same. Absorption speed, bioavailability, and required doses play a big role in their impact. Understanding these details helps you pick the right pre-workout for your goals.
Exploring Citrulline Malate: A Trusted Choice for Pumps
Citrulline Malate stands as a go-to ingredient in many pre-workouts. It combines L-citrulline, an amino acid, with malic acid in a 2:1 ratio. The malic acid helps with stability and might support energy production, potentially aiding both pumps and stamina.
This compound works effectively through a simple process. Citrulline Malate avoids breakdown in the liver, creating a pool of amino acids that convert to arginine in the urea cycle, boosting NO production. This pathway ensures more of it reaches your system compared to direct arginine intake.
In the kidneys, citrulline turns into arginine, which then supports NO creation. This indirect method outperforms straight arginine supplements, as it skips the heavy first-pass metabolism that reduces arginine’s effectiveness.
Citrulline Malate supplementation during tough workouts raises urea cycle metabolites and nitrite levels, impacting NO production at clinical doses. This leads to better blood flow and workout performance.
Absorption-wise, Citrulline Malate shines by dodging liver breakdown, but it often needs higher doses, typically 6 to 8 grams, to show consistent results. Studies frequently use the upper end of this range for noticeable effects.
Citrulline Malate boosts nitric oxide, enhancing blood flow to active muscles for better pumps and performance. You’ll likely notice more training capacity, less fatigue, and stronger muscle pumps.
Understanding Nitrosigine: A High-Efficiency Nitric Oxide Option
Nitrosigine, also called Arginine Silicate Inositol (ASI), marks a step forward in nitric oxide supplements. This patented blend tackles the shortcomings of regular arginine while adding benefits through its silicon component.
Its design pairs arginine with inositol-stabilized silicate, improving delivery and including silicon to support blood vessel health. Nitrosigine raises serum arginine levels more effectively than standard arginine forms.
Unlike basic arginine, which loses much of its potency to first-pass metabolism, Nitrosigine’s structure boosts stability and uptake. The inositol protects arginine from breaking down, and silicate adds vascular advantages. Studies show Nitrosigine increases serum silicate levels, supporting arterial health via dual mechanisms.
Its efficiency stands out in dosing. While Citrulline Malate often needs 6 to 8 grams, Nitrosigine works at just 1.5 grams. This lower dose makes it a practical choice for both users and formula creators.
Nitrosigine raises arginine and silicon levels in serum and tissues more than other ingredients, potentially outperforming them in NO production. This leads to quicker, stronger effects at smaller amounts.
Nitrosigine enhances athletic performance through nitric oxide mechanisms, improving blood flow, pumps, nutrient delivery, and workout capacity.
Head-to-Head: Absorption and Impact of Citrulline Malate vs. Nitrosigine
Direct comparisons provide the clearest insights into these nitric oxide boosters. A double-blind, placebo-controlled study at the University of Arkansas tested 1.5 grams of Nitrosigine against 8 grams of Citrulline Malate, with a 7-day washout period. This setup ensures reliable, unbiased results.
The study used flow-mediated dilation (FMD), a trusted method to measure blood vessel function. FMD assesses the vascular endothelium’s ability to produce nitric oxide. Ultrasound-based FMD offers a non-invasive way to evaluate vascular health and NO capacity.
Dosing efficiency was a key finding. Nitrosigine showed significant blood vessel dilation at 1.5 grams compared to Citrulline Malate at 8 grams, highlighting its dosing advantage. This efficiency benefits both formula design and user convenience.
FMD was measured at baseline and 60 minutes after dosing, comparing Nitrosigine at 1.5 grams to Citrulline Malate at 8 grams. The timing shows how quickly both ingredients start working.
Vasodilation results were close. Citrulline Malate increased FMD by 2.44% from baseline, while Nitrosigine achieved 2.48% at a much lower dose. Both proved effective, with Nitrosigine requiring less.
For practical use, both ingredients showed lasting effects, maintaining enhanced dilation over time after a single dose. This means your pump and performance gains stick around through your workout.
|
Feature |
Citrulline Malate (CM) |
Nitrosigine (ASI) |
Efficacy |
|
Primary Mechanism |
Arginine conversion |
Directly raises serum Arginine and Silicon |
Both increase NO production |
|
Effective Dose for Vasodilation |
6-8 grams |
1.5 grams |
Nitrosigine is more dose-efficient |
|
Dose Efficiency |
Lower |
Higher |
Nitrosigine works at smaller doses |
|
FMD Increase (Study) |
~2.44% |
~2.48% |
Similar vasodilation effects |
How Bucked Up Helps You Pick the Right Pump Booster
Knowing the details behind these ingredients lets you choose what works for your workouts. Bucked Up lists exact ingredient amounts on every product, so you know what you’re taking and how it benefits you. This clarity helps you understand the impact on your training.
When deciding between Citrulline Malate and Nitrosigine, think about your focus. Citrulline Malate has extensive studies behind it, making it a solid pick for dependable pump support. It’s common in many pre-workout blends for consistent results.
Nitrosigine suits those who value efficiency and modern formulas. Its better absorption means strong effects from smaller doses, ideal for advanced users looking for potency.
Bucked Up incorporates both ingredients across its range. The original Bucked Up pre-workout includes Citrulline Malate (2:1) for reliable pumps, energy, and endurance. It’s a great starting point for anyone new to pre-workouts.

For a step up, Woke AF offers heightened stimulation, catering to those wanting more intensity in their sessions.

For maximum impact, Mother Bucker combines Nitrosigine with L-Citrulline, aiming for peak nitric oxide support in an advanced mix.

Bucked Up tailors options to different needs and experience levels. Whether starting with the original formula, stepping up with Woke AF, or going all-in with Mother Bucker, you get effective doses and full ingredient disclosure.
How to Optimize Your Pump with Proper Timing
Understanding absorption helps you get the most from these ingredients. Both Citrulline Malate and Nitrosigine start working fast, showing blood vessel dilation within 60 minutes. Taking your pre-workout 20 to 30 minutes before exercise aligns its peak effects with your session.
Their lasting impact ensures the pump doesn’t fade mid-workout. This ongoing blood flow supports longer sessions, whether lifting heavy or doing high-rep sets. It also aids recovery by improving nutrient delivery and waste clearance after training.
If you’re considering combining ingredients, formulas like Mother Bucker include both Citrulline Malate and Nitrosigine to enhance pump effects through complementary actions, as shown in product details.
Your response to these ingredients can depend on factors like body weight or training experience. New users might notice effects at lower doses, while seasoned athletes may need full clinical amounts. Testing single-ingredient options first helps gauge your reaction before trying complex blends.
Timing isn’t just for workout days. Some users take these on rest days to aid recovery and keep blood flow optimal as part of their fitness routine.
More Than Pumps: Extra Benefits for Performance
Muscle pumps are the obvious perk of nitric oxide boosters, but the advantages go further. Better blood flow improves oxygen delivery to muscles, potentially delaying fatigue and allowing more training volume for long-term gains.
Enhanced circulation also supports muscles by delivering fuel during workouts and aiding recovery afterward. Clearing waste products helps maintain intensity during tough sessions.
The mental boost is real too. A strong pump can increase motivation and sharpen focus, improving your connection to the muscle and making workouts more effective.
Regular nitric oxide support might benefit vascular health beyond exercise. Better endothelial function contributes to overall cardiovascular wellness when paired with a balanced lifestyle.
Safety Tips and Best Usage Practices
Both Citrulline Malate and Nitrosigine are generally safe at recommended doses. Studies report few side effects, with mild stomach discomfort being the most common if taken without food. Starting with smaller amounts and building up can ease adaptation and reduce digestive issues.
If you have heart-related conditions, check with a healthcare provider before using these supplements. Their blood vessel-dilating effects could interact with medications or health issues. Open discussion with your doctor ensures safe use.
Staying hydrated is vital when using nitric oxide boosters. Proper water intake supports blood volume and flow, amplifying vasodilation benefits. Pairing these supplements with good fluid and electrolyte levels optimizes performance.
Ingredient quality matters. Bucked Up uses GMP-certified facilities and strict testing to ensure purity and potency match what’s on the label. This is critical for specialized compounds where consistency impacts results.
Common Questions About Nitric Oxide Boosters
How Soon Do Citrulline Malate and Nitrosigine Start Working for Pumps?
Both ingredients act quickly, with blood vessel dilation measurable within 60 minutes. You’ll typically feel increased blood flow and pumps within 20 to 30 minutes, making them ideal to take before starting your workout. The effects peak during your session.
What Is Flow-Mediated Dilation and Why Does It Matter?
Flow-mediated dilation (FMD) is a non-invasive method using ultrasound to measure blood vessel expansion in response to increased flow. It directly shows how well the vascular endothelium produces nitric oxide, which drives pumps and blood flow. As a standard for testing nitric oxide boosters, FMD offers concrete data on effectiveness, confirming real performance benefits beyond just user feedback.
Can You Use Citrulline Malate and Nitrosigine Together for Stronger Results?
Pairing Citrulline Malate and Nitrosigine can enhance nitric oxide production through their distinct pathways. Bucked Up’s Mother Bucker formula includes both Nitrosigine and L-Citrulline for a combined pump effect. Results can vary by individual, but this approach aims for broader support.
Does Absorption Speed Affect How Long the Pump Lasts?
Both ingredients show sustained effects, with enhanced blood vessel dilation lasting well after intake. Even if absorption rates differ, the pump benefits persist through workouts and into recovery. This duration helps during extended training and supports post-exercise recovery.
Which Is Better for New Users vs. Experienced Athletes?
Both work for any level, though preferences and formulas play a role. Newcomers might start with Citrulline Malate in products like Bucked Up’s original pre-workout for a straightforward entry. Experienced users may prefer Nitrosigine’s efficiency in advanced options like Mother Bucker. Begin with suggested doses and adjust based on your response for the best outcome.
Final Thoughts: Boost Your Pumps and Performance with Bucked Up
Both Citrulline Malate and Nitrosigine stand out as effective nitric oxide boosters with distinct strengths. Citrulline Malate brings proven reliability from years of research, while Nitrosigine offers high absorption at lower doses. Studies confirm they both significantly enhance blood flow, with Nitrosigine doing so more efficiently.
There’s no universal winner here. Your best pick depends on personal goals and preferences. The key is choosing products with effective doses, clear labeling, and quality standards.
Bucked Up uses both trusted ingredients like Citrulline Malate and newer options like Nitrosigine, ensuring something for every athlete. From the original Bucked Up for starters, Woke AF for added intensity, to Mother Bucker for advanced users, each formula is crafted for real results.
Pre-workout success comes from understanding how ingredients work and picking what maximizes their value. With this info, you’re ready to make choices that push your training forward.