Special Offer Prom-In L-Citrulline Malate 420 g lemon + FREE 3x Nitrox sample

The package contains:

• 1x L-Citrulline Malate 420 g Lemon (Prom-In)
• 1x Nitrox Pump Caffeine Synephrine 22.5 g (Prom-In) - with caffeineFREE
• 1x Nitrox Pump Caffeine-Free Clean 23.5 g (Prom-In) - caffeine-freeFREE
• 1x Nitrox Pump Caffeine-Free 22.5 g (Prom-In) - caffeine-freeFREE

L-Citrulline Malate 420 g Lemon

PROM-IN Citrulline Malate 420 g is a dietary supplement containing L-citrulline malate in a 2:1 ratio with a refreshing lemon flavor. This product is based on scientific research and is designed to support athletic performance, recovery, and cardiovascular health. Thanks to its simple formula, it is also suitable for vegans.

Scientifically Proven Benefits of PROM-IN Citrulline Malate

Supports nitric oxide production and improves blood circulation

L-citrulline, as a precursor to L-arginine, supports the synthesis of nitric oxide (NO), which plays a crucial role in vasodilation (the widening of blood vessels). Improved blood flow and more efficient distribution of oxygen and nutrients not only support performance but also contribute to better cardiovascular health. Studies have shown that increasing NO levels through citrulline can positively affect the muscle pump and overall performance [(Schwedhelm et al., 2007)].

Reducing Muscle Fatigue and Supporting Recovery

Citrulline malate promotes the faster removal of metabolic toxins, such as ammonia, which accumulate during physical exertion. This process accelerates recovery and reduces the sensation of muscle fatigue. At the same time, the malate contained in the blend supports energy production through the Krebs cycle, which further contributes to effective recovery [(Bendahan et al., 2002)].

Improved Performance

The combination of L-citrulline and malate increases energy production in the form of adenosine triphosphate (ATP), which delays the onset of fatigue and improves physical endurance during both aerobic and anaerobic activities. Studies confirm that citrulline malate can improve training performance and reduce feelings of exhaustion [(Pérez-Guisado & Jakeman, 2010)].

Optimizing Muscle Recovery and Supporting Growth

L-citrulline helps increase blood levels of L-arginine, which improves protein synthesis and muscle fiber repair. This leads to increased long-term strength and supports muscle mass growth [(Wu & Morris, 1998)].

PROM-IN Citrulline Malate 420 g is a dietary supplement based on scientifically proven principles. It helps improve athletic performance, recovery, and long-term cardiovascular health. The ideal choice for anyone looking for effective support for physical activity.

Nitrox Pump Caffeine Synephrine 22.5 g

! Contains caffeine; not suitable for children or pregnant women. The daily dose (22.5 g) contains 250 mg of caffeine. This product is not suitable for individuals with caffeine hypersensitivity.

Nitrox Pump Caffeine+ is a pre-workout supplement for athletes who can generate brutal intensity in a short amount of time and need to ensure their bodies can withstand that onslaught. NITROX PUMP CAFFEINE+ is based on the synergy of citrulline, A-AKG, beta-alanine, and creatine HCl, which create the conditions for uncompromisingly intense sets.

The Neurofocus complex (tyrosine, theanine, CDP-choline), supplemented with caffeine and synephrine, supports focus and controlled intensity—without overstimulation. Nitrox Pump Caffeine+ is designed for those who don’t need motivation, but rather a tool that allows them to fire on all cylinders immediately and hit their mark precisely. For athletes who train hard, fast, and to the fullest—and want a product as reliable as they are.

Nitrox Pump Caffeine+ — a product for short, intense workouts

Nitrox Pump Caffeine+ is a pre-workout for athletes who train short, hard, and want to perform at their absolute best in a limited amount of time.

It doesn’t promise a “quick fix”—it’s based on the physiology of intensity: blood flow, muscle contraction, onset of effort, and the ability to perform at peak without losing precision.

The formula is based on high doses of citrulline, beta-alanine, and A-AKG, which are included to support blood flow and the mechanics of intense sets. Taurine in the formula acts as an osmolyt, commonly used to maintain stability within the muscle cell.

The Neurofocus complex (tyrosine, theanine, CDP-choline) is designed to meet the needs of rapid onset and intensity control—without overstimulation. Caffeine and synephrine effectively complement this onset. Nitrox Pump Caffeine+ is for those with extreme dedication and discipline. For them, training means a quick start and an uncompromising impact.

Performance & Pump — a synergy that sustains intensity

In a short, intense workout, it’s not about a single ingredient. It’s about the environment you can create within your muscles. Nitrox Pump Caffeine+ is built on a combination used in sports nutrition precisely when you need to “explode” and maintain intensity throughout an entire set.

Citrulline malate (6.5 g)

Citrulline is one of the most widely used substances for promoting blood flow and localized muscle work at higher intensities. The dose in Nitrox is designed for heavy training loads, not just a token “pump.”

A-AKG (3 g)

A-AKG is a combination of arginine and alpha-ketoglutarate, used specifically to target the pump, optimal blood flow, and localized muscle exertion. It works well on its own—but it has the strongest effect when combined with citrulline, since each works through a different mechanism.

Citrulline + A-AKG Synergy

Both amino acid forms are used in sports nutrition to support the conditions required for intense training: improved blood flow, more stable muscle performance, and the ability to maintain high-quality contractions even at a demanding pace. Together, they create an environment that athletes describe as a stronger pump and better power during sets—without stimulants.

Beta-alanine (3 g)

Beta-alanine is a common and long-established solution for high-intensity workouts. The dosage is formulated to support short, intense bursts of effort—not extreme paresthesia.

Creatine HCl (2 g)

Creatine is one of the most thoroughly researched substances in sports nutrition. The hydrochloride form offers good solubility and precise dosing—ideal for a pre-workout.

Neurofocus & Energy — Fast-acting, Clear-headed

Intense training isn’t just about muscles. It’s about how quickly you can switch into performance mode and how precisely you can maintain your technique when pushing yourself to the limit. Nitrox Pump Caffeine+ is based on a combination of ingredients used in sports nutrition specifically for this type of performance—rapid onset, clear focus, and controlled intensity.

L-tyrosine

An amino acid commonly included in products designed to help you maintain a clear and focused mind during physical exertion.

L-theanine

It’s known for being used in situations where you need a calm mind without drowsiness. Combined with tyrosine, it creates a state where you’re both relaxed and fully focused.

CDP-choline

A compound used in nootropic blends where coordination and precision of movement are important—even at a fast pace.

Caffeine + Synephrine (10 mg)

A carefully selected combination for a faster onset and a boost of drive, not for overstimulation. Athletes use it when they need to “get going right away” while maintaining full control.

The result?

An instant start. Clear focus. Controlled performance intensity.

Who is Nitrox Pump Caffeine+ for?

Nitrox isn’t a one-size-fits-all pre-workout. Nor does it aim to be. It’s for athletes who know how to be tough in the best sense of the word. For those who can generate intensity that hurts in a short amount of time—and embrace it as part of their identity. It’s for people who possess more discipline than most can imagine. And who want a scientifically formulated product that gives them a rapid onset and the ability to instantly shift into performance mode, where mind and body align in the same moment.

Nitrox is based on a combination of ingredients that do one thing: they create the conditions for hard, precise, and controlled work. Nothing more. Nothing extra. Just an environment that delivers: blood flow where you need it, muscle contraction that doesn’t falter mid-set, and focus that stays sharp even when you’re pushing the limits. Nitrox was created for athletes who don’t seek motivation—they live it. All they need is the ability to shoot quickly and hit the target precisely. And they know that their performance deserves a tool that’s just as reliable as they are.

Nitrox Pump Caffeine Free Clean 23.5 g

Product Concept

During intense strength training, athletes place increased demands on their bodies in terms of blood flow to muscle tissue, cellular hydration, and neuromuscular coordination.

One of the key factors in performance is the production of nitric oxide (NO), which helps regulate vascular tone and blood flow in muscle tissue. Adequate blood flow to the muscles influences the transport of oxygen, nutrients, and metabolic byproducts produced during muscle work.

In addition to blood flow, the volume of muscle cells, the availability of substrates for muscle contraction, and central nervous system regulation of performance also play a role.

Pre-workout supplements of this type contain ingredients designed to:

• supporting nitric oxide synthesis
• cellular hydration and osmotic balance
• the availability of energy substrates for rapid ATP resynthesis
• central nervous system regulation of performance through effects on neurotransmitters (dopamine, norepinephrine, acetylcholine)
• mental focus and cognitive performance during training

This product combines all of these approaches in a caffeine-free pre-workout blend. Furthermore, the formula features all-natural flavors.

Ingredients and Functional Profileof the product:

L-citrulline malate (2:1) — 7,000 mg

L-citrulline is an amino acid that increases the availability of L-arginine in the body and may thus indirectly support nitric oxide (NO) synthesis via NO synthase.

In the scientific literature, citrulline has been studied in relation to:

• increased plasma availability of arginine and the substrate for NO synthase 1 5
• hemodynamic responses to exercise (blood flow through active muscle tissue) 2 4 5
• performance during repeated sets and subjective perception of exertion 1 5
• muscle soreness and markers of muscle damage after training 1 2 3

Beta-alanine — 3,000 mg

Beta-alanine is the rate-limiting precursor of the dipeptide carnosine in muscle tissue. Carnosine acts as an intracellular buffer for hydrogen ions (H+) generated during intense glycolytic exercise.

In the scientific literature, beta-alanine is studied primarily in relation to:

• increased muscle concentrations of carnosine 6 7
• buffering metabolic acidosis during intense exercise 6 9
• performance during high-intensity intervals and repeated sets 7 9

A-AKG (L-arginine alpha-ketoglutarate) — 3000 mg

L-arginine is a direct substrate for the enzyme NO synthase (NOS). The combination of arginine and alpha-ketoglutarate is used to support NO signaling and intermediate metabolism during physical exertion.

In the scientific literature, A-AKG is studied primarily in relation to:

• nitric oxide synthesis and the regulation of vascular tone 10 12
• blood flow and muscle tissue perfusion during exercise 10 12
• amino acid metabolism and Krebs cycle intermediates 10 12

Creatine hydrochloride — 2000 mg

Creatine serves as a rapid source of phosphate groups for ATP resynthesis. Creatine supplementation leads to an increase in intramuscular phosphocreatine stores.

In the scientific literature, creatine is studied primarily in relation to:

• ATP resynthesis during short-term, high-intensity exercise 13 14
• nd performance during repeated strength intervals 13 14
• muscle tissue adaptation to resistance training 13 14

Beet extract — 500 mg

A rich source of inorganic nitrates (NO3-). This pathway represents a mechanism for NO production, which contributes to vasodilation and exercise economy.

In the scientific literature, supplementation is studied primarily in relation to:

• nitric oxide production via the nitrate-nitrite-NO pathway 15 18
• nd vasodilation and blood flow through muscle tissue 15 18
• oxygen consumption and exercise economy during endurance exercise 15 17
• performance during high-intensity protocols 16 18

Grapevine extract (Vitis vinifera) — 200 mg

A source of polyphenols that may modulate the activity of endothelial NO synthase and support nitric oxide production in the vascular wall 19 21.

Niacin (nicotinamide) — 30 mg (188% RDA)

An essential B vitamin that plays a key role in cellular energy metabolism 22 23.

Taurine — 1,000 mg

Helps regulate cellular hydration and osmotic balance. It is being studied for its role in stabilizing cell membranes under stress 24 25.

Coconut water powder — 500 mg

A natural source of electrolytes that supports hydration and intracellular water balance during physical exertion 26 27.

L-tyrosine — 1,500 mg

A precursor to the neurotransmitters dopamine and norepinephrine. It is being studied in relation to maintaining cognitive performance under stress 28 29.

L-theanine — 300 mg

An amino acid studied for its role in modulating neural signaling and supporting calm attention 30 31.

CDP-choline (citicoline) CogniWin® — 250 mg

A source of choline for the synthesis of acetylcholine, a neurotransmitter critical for cognitive processes and attention 32 33.

BioPerine® black pepper extract — 5 mg

Studied in relation to increasing the bioavailability of co-administered nutrients 34 36.

Quality, Raw Materials, and Technology

The product’s formulation is based on raw materials produced using fermentation biotechnology processes, which ensure high purity and a stable composition.

The Natural Clean concept also includes a minimalist approach to flavoring and sweeteners.

The product is:

• flavored exclusively with natural flavors
• sweetened only with steviol glycosides from stevia
• free of synthetic sweeteners
• free of nature-identical flavors

Production:

• manufactured in accordance with IFS / HACCP
• transparent ingredient labeling
• no proprietary blends

When and for whom is it suitable?

• Before high-intensity strength or resistance training
• during evening workouts, when the goal is to boost performance without using stimulants
• when aiming to support vasodilation and blood flow through active muscle tissue during exercise
• for athletes who prefer pre-workout supplements without caffeine or other stimulants

Recommended Use

The recommended dose is 23.5 g of the blend mixed with 300–500 ml of water, taken approximately 15–30 minutes before training.

From a biochemical perspective, it may be beneficial to time intake for about an hour after a light meal containing easily digestible carbohydrates and protein. This approach may improve the mixture’s tolerability and metabolic availability during training.

Nitrox Pump Caffeine-Free 22.5 g

Nitrox Pump Caffeine-Free is a pre-workout for athletes who can generate intensity in a short time through sheer willpower and mental focus alone—they don’t need caffeine or any other stimulants. It builds on the same physiological concept as Caffeine+ and creates an environment that remains stable even amid the “storm” of their workouts. Nitrox Pump Caffeine-Free relies on the synergy of citrulline, A-AKG, beta-alanine, and creatine HCl, which support blood flow, contraction mechanics, and local muscle work. The Neurofocus complex (tyrosine, theanine, CDP-choline) supports focus and controlled performance—this time with a smooth, stimulant-free onset. Nitrox Pump Caffeine-Free is designed for athletes who don’t need a kick. They need space. Space where their own intensity can be fully expressed—precisely, cleanly, and with discipline. For those who train hard, fast, and to the fullest—and want a product as reliable and consistent as they are. Nitrox Pump Caffeine+ is a pre-workout for athletes who can generate brutal intensity in a short amount of time and need to ensure their body can withstand that onslaught. NITROX PUMP CAFFEINE+ is built on the synergy of citrulline, A-AKG, beta-alanine, and creatine HCl, which create the conditions for uncompromisingly intense sets. The Neurofocus complex (tyrosine, theanine, CDP-choline), supplemented with caffeine and synephrine, supports focus and controlled intensity—without overstimulation. Nitrox Pump Caffeine+ is designed for those who don’t need motivation, but a tool that allows them to fire on all cylinders immediately and hit their mark precisely. For athletes who train hard, fast, and to the fullest—and want a product as no-nonsense as they are.

Nitrox Pump Caffeine-Free—a product for short, intense workouts

Nitrox Pump Caffeine-Free is a pre-workout for athletes who train briefly, intensely, and precisely—and want to perform at their peak in a limited amount of time without caffeine or stimulants. It isn’t designed to provide a quick “kick.” It’s based on the physiology of intensity: blood flow, stable contraction, a clean onset, and the ability to explode without losing control. The foundation consists of high doses of citrulline, beta-alanine, and A-AKG, which create the conditions for hard, short sets. Taurine maintains the environment inside the muscle cell so that contractions don’t falter mid-movement.

The Neurofocus complex (tyrosine, theanine, CDP-choline) supports a state where your mind is calm yet precisely focused. Caffeine-free. Synephrine-free. Stimulant-free. Just a clean, steady onset that sustains your own intensity and focus. Nitrox Pump Caffeine-Free is for athletes who don’t need a kickstart. They have their own motivation and mental mindset. All they need is an environment that provides physiological support for their strong mental mindset.

Performance & Pump — a synergy that sustains intensity

In a short, intense workout, it’s not a single ingredient that makes the difference. It’s the environment you can create within your muscles. Nitrox Pump Caffeine+ is built on a combination used in sports nutrition precisely when you need to “explode” and maintain intensity throughout an entire set.

Citrulline Malate (6.5 g) Citrulline is one of the most widely used substances for supporting blood flow and localized muscle work at higher intensities. The dose in Nitrox is tailored for heavy training loads, not just a token “pump.”

A-AKG (3 g) A-AKG is a combination of arginine and alpha-ketoglutarate, used specifically to target the pump, optimal blood flow, and localized muscle exertion. It works well on its own—but it has the strongest effect when combined with citrulline, since each works through a different mechanism.

Citrulline + A-AKG Synergy Both amino acid forms are used in sports nutrition to support the conditions required for intense training: improved blood flow, more stable muscle performance, and the ability to maintain high-quality contractions even at a demanding pace. Together, they create an environment that athletes describe as a stronger pump and better power in their sets—without stimulants.

Beta-alanine (3 g) Beta-alanine is a common and long-established solution for high-intensity workouts. The dose is calibrated to support short, intense bursts of effort—not extreme paresthesia.

Creatine HCl (2 g) Creatine is one of the most thoroughly researched substances in sports nutrition. The hydrochloride form offers good solubility and precise dosing—ideal for a pre-workout.

Neurofocus — Clear Focus, Calm Mind

Intense training isn’t just about muscles. It’s about how quickly you can shift into performance mode, maintain precision, and not lose control even when pushing your limits. Nitrox Pump Caffeine-Free is built on a combination of ingredients used in sports nutrition where clear focus, technique, and a steady pace are essential—no caffeine, no synephrine, and no stimulants. The onset is smooth, controlled, and steady.

L-tyrosine — An amino acid commonly used to support focus during physical exertion. It helps keep your mind clear and focused on performance.

L-theanine - Promotes a calm mental state without drowsiness. When combined with tyrosine, it creates a balance between relaxation and precise focus.

CDP-choline — A compound used in nootropic blends where coordination and precision of movement matter—even at a fast pace.

The result? Clear focus. A steady mind. A smooth onset that maintains intensity—without stimulants.

Who Is Nitrox Pump Caffeine-Free For?

Nitrox Pump Caffeine-Free is a pre-workout supplement for athletes who can train hard—not because something gives them a boost, but because that’s just who they are. For people who can stay calm and sharp at the same time. Who don’t need an external boost to deliver the kind of intensity that hurts—yet comes naturally to them. It’s for athletes who possess a discipline that no one sees, but everyone feels. And they want a product that doesn’t disrupt, rush, or overstimulate their work—but simply creates a space where mind and body meet at the right moment, without caffeine or stimulants.

Nitrox Pump Caffeine-Free is built on a combination of ingredients that do one thing: they create the physiological conditions for hard, precise, and controlled performance. Nothing more. Nothing extra. Just an environment that delivers: blood flow where you need it, a contraction that won’t falter mid-set, and focus that stays sharp even without stimulants. Nitrox Pump Caffeine-Free was created for athletes who don’t need to seek motivation—they have it in their blood. All they need is a space where they can instantly switch into performance mode. And they know that their intensity deserves a tool that’s just as reliable and disciplined as they are.

Jedná se o doplněk stravy.