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Nitraflex Nitraflex 300g
£ 31.69

Nitraflex 300g


From 3 units only: £ 31.06 / Units. -2%

Shipping weight: 450g
£ 31.69With VAT
£ 1.06 / serving
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  • Stimulates and enhances focus on training
  • Significantly increases exercise capacity and muscle strength
  • Reduces post-workout muscle soreness
  • Improves aerobic capacity of the organism
  • Prevents drops in muscle pH
  • Supports muscle regeneration
  • Increases synthesis of nitric oxide
  • Promotes the muscle pump
  • Improves mood

GAT Nitraflex is a technologically advanced pre-workout supplement designed for experienced users. Its ingredients increase focus and endurance to the maximum, enable to achieve monster muscle pump and improve weight training results. In addition, the supplement contains ingredients with scientifically proven beneficial effect on testosterone synthesis.

Ingredients boosting nitric oxide synthesis act in synergy, thanks to which effects achieved in the course of supplementation reach beyond your expectations.

Free L-arginine, L-arginine alpha-keto-glutarate (AAKG) and L-arginine malate contained in the preparation are excellent sources of the endogenous amino acid, which is of course L-arginine. This substance promotes synthesis of nitric oxide (NO) in the organism, which in turn is a potent vasodilator. This means that it is able to relax musculature surrounding blood vessels, in this way dilating them. This results in increased blood supply to muscle tissue and greater provision of energy substrates, minerals, vitamins and oxygen. As a result, muscles are able to work longer and harder and quickly regenerate after exercise.

The mixture also contains L-citrulline and its other form - L-citrulline malate, which compound is a combination of malic acid and L-citrulline molecule. Both of these forms enhance synthesis of nitric oxide very efficiently by increasing the concentration of arginine in the body.

In addition, the forms of L-citrulline and L-arginine malate demonstrate higher stability of the molecule in an acidic environment, so they do not break down in contact with hydrochloric acid present in the gastric juice. What is more, malic acid from the above compounds takes part in energy transformation processes in the body. Therefore its increased supply can improve efficiency and ability to generate strength.

The above mentioned forms of L-arginine and L-citrulline were supplemented with Resveratrol and its more efficient derivative - Pterostilbene. Apart from high antioxidant potential and anti-inflammatory activity, both of these compounds increase synthesis of the aforementioned nitric oxide. Their addition enhances the muscle pump sensation and supports the circulatory and nervous systems.

The carefully assorted mixture of substances supporting concentration and increasing energy levels includes:

Beta-alanine is a substrate for the synthesis of carnosine, a substance that maintains the correct pH of muscle tissue. During physical effort, this dipeptide counteracts rapid drops in muscle acidity that occur as a result of the glycolysis process. Increased concentration of lactic acid, which is the reason for the pH drop, gradually reduces the ability to contract muscles, reducing their efficiency. In drastic cases, this process may even prevent further muscle work, leading to nausea and severe pain. Carnosine counteracts drops in the pH level, which increases muscle endurance and reduces soreness during and after training.

Caffeine is one of the most popular legal stimulants in the world. It helps keep up high energy levels, improves mood and enables to preform heavy trainings. This is due to the affinity of caffeine to the adenosine receptor in neurons, which reduces inhibitory action of adenosine alone. In this way, neurotransmission occurs faster, which in turn boosts energy and motivation and reduces fatigue.

What is more, caffeine accelerates metabolism and may increase exercise capacity of the organism. This effect is due to stimulated secretion of excitatory neurotransmitters, such as adrenaline.

DMAE, or Dimethylaminoethanol, is an organic compound with strong nootropic properties, which are due to increased levels of acetylcholine in the brain. Its high concentration allows to focus entirely on the chosen target. It also improves mood. An additional benefit of taking DMAE in connection with its antioxidant properties is the reduction of oxidative stress.

Rauwolfia Canescens extract is the source of rauwolscine, a substance that is the α2-adrenoceptor antagonist. Blocking them results in increased noradrenaline secretion, which in turn strongly stimulates, increases exercise capacity and enables to remain focused for a longer time.

N-Acetyl-L-tyrosine is the source of L-tyrosine in the acetylated form, which passes the blood-brain barrier more effectively. It can increase the production of dopamine and adrenaline, and therefore has stimulating effect, boosts concentration and improves cognitive abilities. It is also able to increase exercise capacity, which is why it is often used in pre-workout preparations.

L-theanine - an amino acid with broad application. Its structure is almost no different from caffeine, but it works quite differently. Depending on the dose, it promotes gentle arousal, but without feeling shaky, or it can have a relaxing and calming effect. It was contained in the supplement to enhance concentration, in this way improving muscle sensation. It is a great addition to strong stimulants because it prevents flight of ideas and supports the ability to concentrate.

The product was also enriched with natural, patented form of boron, which is one of the few substances with scientifically documented ability to increase the amount of testosterone in the body of healthy, active people. Most boosters of this hormone increase its level significantly, but only in people with large deficiencies or extremely obese. However, boron increases the amount of free, or biologically active, testosterone by up to 30%, which has been proven in studies on humans.

High concentration of this hormone is a key parameter determining the well-being, libido and exercise capacity, both in men and women. In addition, increased testosterone level promotes positive nitrogen balance, which increases the share of anabolic reactions, which in turn boosts muscle development and accelerates regeneration.

To sum up, GAT Nitraflex is a comprehensive pre-workout supplement with rich and holistic content, which allows you to complete a spectacular training session even on a hard day. In addition, the product improves mood and can significantly increase the amount of free testosterone.

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Container size: 300 gServing size: 10 gServings per container: 30
per portion (10 g)amount%DV
Niacin (as nicotinic acid)25mg125%
Nitraflex Proprieceutical Blend7240 mg**
Vasoactive Arginase-Regulating NO Precursor Complex Citrulline, Citrulline Malate, L-Arginine Malate, L-Arginine, Alpha-ketoglutarate, Resveratrol, Pterostilbene
Acute Energy, Focus, Intensity, Neuromodulating, Endurance Complex Beta Alanine (as CarnoSyn), Caffeine, DMAE Bitartrate, N-Acetyl-L-tyrosine, N-Acetylo-L-tyrosine, L-theanine, Raulwolfia Canescens (extract)
Clinically-Studied Testosterone-Enhancing Complex Calcium fructopyranose borate (CFB) US Patent #5,962,049

Other ingrednients

Blue Raspberry: Pineapple Fruit Powder, Natural and Artifical Flavours, Citric Acid, Silicone Dioxide, Acesulfame Potassium, Sucralose, FD&C Blue #1; Black Cherry: Pineapple Fruit Powder, Natural and Artifical Flavours, Citric Acid, Silicone Dioxide, Acesulfame Potassium, Sucralose, FD&C Red #40, FD&C Blue #1; Fruit Punch: Pineapple Fruit Powder, Natural and Artifical Flavours, Citric Acid, Silicone Dioxide, Acesulfame Potassium, Sucralose, FD&C Red #40; Green Apple: Pineapple Fruit Powder, Natural and Artifical Flavours, Citric Acid, Silicone Dioxide, Acesulfame Potassium, Sucralose, FD&C Blue #1, FD&C Yellow #5; Orange: Pineapple Fruit Powder, Natural and Artifical Flavours, Citric Acid, Silicone Dioxide, Acesulfame Potassium, Sucralose, FD&C Red #40, FD&C Yellow #5; Pina Colada: Pineapple Fruit Powder, Natural and Artifical Flavours, Citric Acid, Silicone Dioxide, Acesulfame Potassium, Sucralose, Milk, Coconut; Pineapple: Pineapple Fruit Powder, Natural and Artifical Flavours, Citric Acid, Silicone Dioxide, Acesulfame Potassium, Sucralose; Watermelon: Pineapple Fruit Powder, Natural and Artifical Flavours, Citric Acid, Silicone Dioxide, Acesulfame Potassium, Sucralose, FD&C Red #40

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Maximum concentration of beta-alanine (as much as 2,000 mg per portion).


Citrulline malate


Citrulline Malate is formed by combining molecules of the citrulline amino acid and molecules of malic acid in one molecule, which has the chemical stability and is well soluble in liquids. Ionized malic acid has the ergogenic potential, providing a complementation to the citrulline potential of with new properties. It improves the exercise capacity and reduces the feeling of fatigue, and its supplementation is beneficial at any level of fitness. It affects the acid-base balance. It should be used by people who practice sports: strength, endurance and mixed strength-endurance. To achieve the best results, a dose of Citrulline Malate 6 g / 24h is recommended.
It is available as single-ingredient supplements and multi-component supplements (creatine stacks, no-boosters, amino acid supplements). It is used in the periodic, cyclic and constant supplementation.
Dosage: 3-8 g daily (in divided doses). The optimal dose to achieve beneficial results, proven experimentally, is 6 g / 24h.





Arginine is an exogenous amino acid, it is a component of dietary proteins, not always synthesized in the human body in necessary quantity, so it is necessary to deliver it in the form of synthetics. It takes part in the biosynthesis agmatine, creatine and nitrogen oxides. The use of supplements containing arginine before workout increases the exercise capacity (strength, endurance). Used after considerable effort intensifies the transfer of energy and building compounds and intensifies the process of recovery. Used at bedtime in combination with lysine and ornithine enhances the synthesis of growth hormone. takes part in the intrasystemic synthesis of creatine. Arginine (as a precursor of ornithine) is involved in the urea cycle, increases the flow of blood in the circulatory system, increases sexual potency (in a short time after application). It affects the body's immunity preventing infections, and lowers blood pressure. In supplements – usually as alpha-ketoglutarate.




Alpha-ketoglutarate (ionized Alpha-ketoglutarate acid, ketone derivative of glutaric acid). Involved in the metabolism of amino acids, oxidation, and transport of the nitrogen in the body. It accelerates the synthesis of components of food (anti-catabolism). In sports supplementation it is used in combination with arginine, glutamine and BCAA. As it is of excreting a toxic ammonia from the body - it is antitoxin. It is a part of sports pre- and post-training supplements, and anti-catabolic supplements and amino acid complexes.




Resveratrol - is a natural phenolic, compound produced as an antagonist of pathogens. It can be found, among others, in grapes, peanuts and red wine. It is oxidizing, preventing forming of free radicals of oxygen, supports the operation of systems: the hormone (binds to receptors of estrogenic and reduces the activity of the enzyme 5-alpha-reductase, is an aromatase inhibitor), blood (oxygenation of organism), and immune. In the sports supplementation used in silhouetted disciplines due to reduce of fat tissue. It is a component of supplements to support the functioning of the endocrine system (increases testosterone levels, lowering estrogen levels), antioxidant complexes and detoxifying the organism supplements, available at
Dosage: the lack of strict standards of daily consumption.



Pterostilbene is a modified form of resveratrol which is better absorbed by the body. It is a compound which may have a beneficial impact on detoxification process of the body, prevents the development of cancer and influences mitochondrial function, fat burning process and the function of nerve and muscle cells, which may be important to athletes.

Studies have shown that pterostilbene is a strong antioxidant and that is why it may help reduce oxidative stress in the body caused by oxygen free radicals. It inhibits their oxidation by increasing the secretion of antioxidant enzymes.

Scientists have also demonstrated that pterostilbene may have a major anti-cancer effect. It may inhibit the proliferation of melanocytes and block enzymes which activate carcinogens. It probably blocks the formation of prostaglandin E2 (PGE2) – a hormone involved in the initiation of an inflammatory response. Because of that, we can presume that it will be an effective anti-inflammatory agent.

According to some sources, pterostilbene may stimulate the activity of fat-sensing complexes (caloric restriction), which results in a decrease in blood lipid and sugar levels and thus promotes body fat reduction. Results of one study have also shown that pterostilbene helps increase muscle gain and strength because it promotes anabolic processes.

Endurance complex


Endurance Complex contains a set of components that improve body strength. It includes: taurine, l-norvaline, ginger root extract, beta-alanine (precursor of carnosine). Taurine (protein amino acid containing sulphur), which is synthesized in the body from methionine and cysteine. Significantly affects the calcium content in the cells and stabilizes the water and electrolyte balance and maintains acid-base balance, takes part in the synthesis of bile acids. In the body acts as a neurotransmitter and neuromodulator. It insulin-mimetic improving insulin metabolism, responsible for transport of nutrients (such as amino acids, glucose, creatine) to the cells and muscle tissue. L-norvaline has beneficial effect on the processes of synthesis of nitric oxide. Ginger root extract is anti-inflammatory, anti hypotensive and anti-oxidation of LDL cholesterol and improves the bioavailability of other ingredients. Beta-alanine is an amino acid, in combination with histidine forms carnosine, lowering the level of hydrogen ions, allowing the extension of effort has antioxidant properties and influences the biological regeneration. It co-creates a formula of Xtreme 3R supplement by Fitness Authority, available at



Alanine is an endogenous amino acid (i.e. having the ability to synthesize the human body other amino acids and pyruvate), building up protein. It has a key role in the transport of nitrogen between the muscles and the liver (i.e. Cahill cycle). It allows to transform glucose in non-sugar compounds. During prolonged exercise it enhances metabolism. It occurs in products of animal origin (meat, dairy, eggs) and vegetable origins (legumes, peas). It is used in the form of amino acid supplements in pre- and post-workout preparations. It complements the BCAA. Increased use of supplements with alanine is required in athletic training when high strength and endurance is required (e.g. weights lifting athletes marathon runners etc.).




CarnoSyn® is a patented, highly bioavailable form of beta-alanine, designed by Natural Alternatives International (NAI). Its effectiveness has been confirmed by numerous clinical tests. To date, more than 55 independently reviewed studies on the CarnoSyn® properties have been published. CarnoSyn® Beta-alanine is found in advanced, multi-component peri-training formulas, but it can also be purchased as a mono-preparation.

The active ingredient of CarnoSyn® is beta-alanine. This amino acid is used in the body mainly for the production of carnosine, which is responsible for buffering of the drop in pH, associated with the formation of lactic acid in muscle cells during physical exertion. The increased level of carnosine results in better tolerance to effort and growth of muscle strength and endurance, which delays fatigue and prolongs the ability to continue exercise.

Dosage: as to ensure the optimal effect of CarnoSyn®, NAI recommends using 3.2g of the product per day for a minimum period of 4 weeks (the so-called loading phase). In addition, the manufacturer suggests dividing this dose into two portions, (1.6 g each), which helps to avoid the symptoms of paresthesia that sometimes occur following administration of beta-alanine.




Caffeine (1,3,7-trimethylxanthine, 1-methylotheobromine) is a purine alkaloid occurring in the natural state in plants (Coffea arabica, Camelia sinensis, Paulinia cupana, Ilex paraguariensis), which acts as a natural pesticide, acting toxic to insects. Peculiar smell and taste also deters herbivores. Caffeine in the body inhibits the adenosine receptors in the brain, fighting fatigue and allowing for action activation. It has a beneficial effect on the metabolism of oxygen, which increases the exercise capacity (strength and endurance) and rapid post-workout recovery. In the sports supplementation, caffeine is used as a stimulant nervous system. It has the thermogenic potential and in combination with other substances (e.g. Polyphenols, both occurring in coffee beans, such as cocoa beans, tea leaves and mate) can effectively participate in the reduction of body fat. It is included in many dietary stimulants (creatine stacks, no-boosters, beverages). It is a component of fat burners. It is also in the form of mono-preparation supplements.
Dosage: 100-600 mg per day. Due to the long release of activity should not be used in the evening, before




N-acetyl-L-tyrosine - acetylated form of tyrosine (an endogenous amino acid) improves the solubility and bioavailability of active ingredients. It can be used in lower doses than those taken as free tyrosine. It has a higher availability to the nerve tissue, reduces the feeling of fatigue, improves the exercise capacity psycho (psychostimulant), and, it is a additive to thermogenic effect preparations. It is used in medicine (increases levels of neurotransmitters including dopamine and norepinephrine) and sports dietary supplementation, in pre- and post-workout supplements, as well as fat burners, no-boosters and pre-workout creatine stacks and supplements and energizing beverages.
Dosage: In divided doses ranging from 100-300 mg per day.




Tyrosine - endogenous amino acid (synthesized within the body), one of the 22 protein amino acids building. It occurs naturally in animal food products (eggs, dairy, meat). If the deficiency, it can be synthesized by hydroxylation of phenylalanine, capable of being converted to tyrosine in the liver. It is a precursor of neurotransmitters: dopamine (the group of catecholamines, participating in the processes occurring in the nervous system, causing muscle coordination and participates in the synthesis of many hormones) and noradrenaline (counteracting stress, stimulating the heart and circulatory system, and increasing glycogenolysis and lipolysis participating in the processes of energy transformations). Tyrosine is a precursor of thyroid hormones responsible for the rate of change in metabolic processes and pigment (melanin). In the supplementation, preparations containing tyrosine are used in programs reducing body fat (weight loss), improve mood and are stimulants.
Dosage: Customarily 500-2000 mg per day.




L-theanine is an amino acid, not building proteins, occurring naturally in the dried green tea leaves, absorbed from the gastrointestinal tract, overcomes easily blood-brain barrier, affecting the nervous system and the relation between neurotransmitters (e.g.dDopamine, serotonin, gamma-aminobutyric acid), with a relaxing effect and increases the psycho-physical capacity, (concentration, memory, alertness). Recommended for use for people burdened with considerable physical effort, athletes of sport disciplines that require concentration and memory, also for students in the period before exams. Available in the form of mono-preparations and multi-component relaxing and post-workout anti-stress supplements..
Dosage: customarily used in supplementation 50-200mg per day




Calcium (element chem. symbol Ca, atomic no. 20, the group of alkaline earth metals) is the basic building substance of bones and teeth, in which stored is 99% of the element, in the form of hydroxylapatite. When building bones and teeth, phosphorus is very important in the right proportion. It is a base-forming element and activator of many enzymes (ATPase) necessary to release the energy of ATP. It has a significant effect on blood clotting and regulates blood pressure and neuromuscular conductivity. Thanks to the reduced permeability of cell membranes, it soothes the symptoms of food allergies. Calcium is actively involved in the metabolism of iron interacts with vitamins A, C and D and phosphorus, magnesium. Natural source of calcium are animal products (dairy products, sardines, salmon, sprats eaten with bones) and plant products (nuts, soybeans, sunflower seeds). Absorption takes place in the small intestine (less in the colon), it has an effect on the level of lactose, insoluble fibre, organic acids, alkalinity (low pH). The best absorption have organic compounds (lactates, amino acid chelates etc.). Obstructing the absorption of calcium is caused by: phytic acid and oxalic acid as well as excess fat. Scientific studies have confirmed that the combination of calcium, magnesium, boron and vitamin D in dose 3 mg / 24h effectively prevent osteoporosis. Supplements on the market are both mono-preparation supplements (enriched with vitamin D3) and multi-component supplements, available at
Calcium deficiency disorders manifested in the construction of the bones (osteoporosis) and iron metabolism. The symptoms are: rickets, cramps and muscle tremor, osteoporosis.
Excess result
ing from an overdose of calcium supplements containing vitamin D3 for children and adults overdose of calcium (hypercalcemia). Symptoms of hypercalcemia are: lack of appetite, vomiting and constipation.
The dosage administered in various publications
are inconsistent: 800 - 1000 mg / 24 h (100 - 500 mg / 24h)

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