Since 2005
You are currently:
Choose language:
Need help?
Leave message
Choose language:
Select currency: $ £
Since 2005
Order:£ 46.00£ 91.00£ 137.00£ 183.00£ 229.00
Shipping:-£ 2.00-£ 5.00-£ 7.00-£ 9.00-£ 11.00
0 £ 0.00
Since 2005  +44 7507 981511
Since 2005
Add to Cart
M13 M13 270g
£ 18.25

M13 270g

Servings: 270g


EU Stock
Small amount
Working days
from the dispatch
Minimum expiration date:
For free shipping is missing: £ 65.00
£ 18.25With VAT
£ 1.01 / serving

From 3 units only £ 17.88 /Units. -2%

1 Units.
Add to Cart

Customer Service

(mon.-fri 900-1700

You have got questions about the product

  • A unique blend of 16 synergistic active ingredients
  • Composition created by Michał Karmowski
  • Significantly increases the body’s efficiency
  • Causes no excessive arousal
  • Safe and tested components
  • Promotes a powerful muscle pump
  • Increases concentration and motivation
  • Allows faster regeneration
  • Supports muscle anabolism
  • Counteracts fatigue
  • Optimizes muscle pH
  • Improves well-being

TREC M13 is a supplement that reveals a completely new, innovative production concept for pre-workout preparations. Thanks to a rich composition with a limited amount of stimulants, the preparation allows athletes to improve their strength results, increase endurance and achieve maximum concentration on the target. TREC M13 does not cause excessive arousal, distraction and sleep problems that are common for pre-workout supplements based on stimulants. The synergistic composition, containing as many as 16 ingredients, has been selected under the supervision of Michał Karmowski, a titled bodybuilder and coach.

Beta-Alanine is one of two amino acids necessary for the synthesis of carnosine – a dipeptide buffering the pH in muscle tissue. As a result of the physical effort, various metabolites, such as lactic acid, accumulate in the muscle tissue. The increasing level of this substance lowers the pH in myocytes, and also reduces muscle performance, providing considerable pain. The high level of carnosine counteracts drastic drops in muscle pH, thus reducing post-workout pain and significantly increasing muscle endurance.

In addition, carnosine has a strong antioxidant effect, supporting the health of the circulatory system and reducing the level of inflammation.

Citrulline malate is a combination of the malic acid molecule with L-citrulline, an amino acid whose supplementation significantly influences the synthesis of nitric oxide (NO) and thus the increased muscle pump. L-citrulline is the precursor to arginine, which allows the body to produce NO, thus affecting the dilation of blood vessels. As a result, an increased amount of blood flows through the muscle tissue, which not only provides valuable energy and mineral components but also visually enlarges the muscle. In addition, the malic acid molecule contained in citrulline malate increases the stability of the whole molecule. Interestingly, L-citrulline supplementation is a more effective way to increase L-arginine concentration in the body than the consumption of L-arginine in any form.

L-Arginine alpha-ketoglutarate, also known as AAKG, is a substance that allows a significant increase in the level of L-arginine in the body. The increase in the concentration of this amino acid results in an increased synthesis of NO, which results in an exceptional muscle pump that lasts for a long time after completing the workout. In combination with L-citrulline, AAKG is the perfect stack for improving blood supply, and thus efficiency, strength and muscle regeneration.

Cocoa extract (Latin: Theobroma cacao) is the source of theobromine. This xanthine is a metabolite of caffeine but has a slightly different effect. The substance stimulates vasodilation, i.e. the expansion of blood vessels. Thus, administration of theobromine before a workout will improve the quality of the muscle pump, so that the muscles will gain a bulky look whereas their strength will increase.

Caffeine is the world’s most popular stimulant. This alkaloid is one of the basic ingredients of pre-workout preparations, which provide excellent stimulation and increase the body's efficiency. Caffeine's properties to reduce fatigue and improve mood and concentration are due to its similarity to adenosine. This neurotransmitter is responsible for drowsiness and fatigue, whereas caffeine prevents its activity by docking to its receptors. In addition, this alkaloid increases the level of catecholamines, thereby increasing aerobic capacity and the ability to generate strength.

Taurine is an amino acid that is particularly effective in combination with caffeine. Synergistic activity of these two components ensures increased arousal and physical capacity while avoiding distraction or irritability. The combination of caffeine and taurine almost doubles the duration of action of both substances, without unpleasant effects of energy decrease when the activity of substances ceases.

Rhodiola Rosea extract is one of the most popular adaptogens, i.e. substances that enable the body to increase resistance to various types of stress. Rosavins contained in the extract reduce the feeling of tiredness, support cognitive functions and are strong antioxidants. In addition, administration of Rhodiola Rosea extract prevents depression and visibly improves the mood.

L-Tyrosine is a unique amino acid that is necessary for the secretion of many hormones, including catecholamines and thyroid hormones. As a result, L-tyrosine contributes to the acceleration of metabolism and increased motivation for action. The increased level of dopamine resulting from supplementation with this amino acid may result in improved mood.

Green coffee extract (Latin: Coffea viridis) contains 50% of chlorogenic acid (ACG). This substance belongs to polyphenols; it prevents free radicals and stabilizes the level of glucose in the blood. What's more, ACG reduces the rate of carbohydrate absorption and supports the insulin effect on cells, preventing insulin resistance and allowing better nutrition of muscle tissue.

L-Tryptophan is an exogenous amino acid that has a special function in the nervous system. Its presence allows the synthesis of serotonin, which is responsible for good mood and calming effect. High concentration of serotonin allows falling asleep. In addition, tryptophan is essential for transforming serotonin into melatonin, which improves the quality of sleep and regulates the circadian rhythm.

Inosine is an organic chemical compound that is a purine nucleoside. In pharmacology, it is used due to its immunostimulatory and antiviral properties which cause a significant increase in resistance to all pathogens. No less important is the ability of inosine to enhance the biosynthesis of high energy compounds, such as adenosine monophosphate (AMP) or guanosine-5'-monophosphate (GMP). An increased level of these compounds may affect the generation of more energy by the muscles, and accelerate their regeneration.

Korean Ginseng Extract (Latin: Panax ginseng) is known for its properties that support both the nervous system and the entire system in conditions of exhaustion. The studies showed that the Korean ginseng extract reduces the activity of stimulants, thus counteracting excessive stimulation. This extract contains 10% of ginsenosides – substances with high antioxidant potential that are capable of enhancing the aerobic capacity of the body.

Ashwagandha extract (Latin: Withania somnifera) is a source of withanolides – substances with high bioactivity. These substances have properties for lowering blood pressure and they also increase the effect of serotonin. Administration of Ashwagandha extract is a great way to relax and fall asleep faster. These effects result not only from the increased activity of serotonin but also from the reduced level of cortisol, known as the stress hormone, which also stimulates catabolic reactions. In addition, the extract has a positive effect on motor and cognitive abilities.

Hollyhock extract (Latin: Ilex paraguariensis) provides natural xanthines with a mild stimulant effect, such as caffeine, theobromine or theophylline. The extract also affects the speed of metabolic processes in the body and increases thermogenesis. In addition, it prevents the retention of water in the body, giving the figure a lean and defined look.

Niacin, also known as vitamin B3 or PP, supports the functioning of the nervous system and supports energy conversions in the human body. In addition, it may enhance the effect of the muscle pump, thanks to the ability to relax the vascular smooth muscles.

Vitamin B12 is an extremely important vitamin in terms of general health. It significantly affects the condition of the nervous system by supporting the regeneration of neurons and improves cognitive functions while reducing fatigue. In addition, many studies have demonstrated the anabolic properties of vitamin B12, resulting from the promotion of muscle protein synthesis. 

TREC M13 contains dibencozide – an excellent form of vitamin B12 with rapid absorption and excellent bioavailability. Importantly, this form does not require the body to conduct methylation.

In summary, TREC M13 is an interesting pre-workout supplement with an extremely extensive composition, which allows improvement of the quality of training without worrying about problems with excessive arousal or drowsiness. The preparation also improves cognitive functions as well as mood, hence it works well after a hard day when it's difficult to muster some energy for training.


Directions for use
Reviews (0)


Container size: 270 gServing size: 15 g (2,5 scoops)Servings per container: 18
per portion (15 g)amount%DV
Citrulline malate2500mg**
including L-Citrulline1400mg**
L-Arginine alpha-ketoglutarate2400mg**
including L-Arginine1560mg**
Green Coffee Extract [seeds] (Coffea canephora) [50% of ACG]500mg**
including ACG250mg**
Caffeine (total content)160mg**
Cocoa extract [seeds] (Theobroma cacao) [10% of theobromine]100mg**
including Theobromine10mg**
Korean Ginseng Extract [root] (Panax ginseng) [10% of Ginsenosides]100mg**
including Ginsenosides10mg**
Ashwagandha extract [entire plant] (Withania somnifera) [9% of Withanolides]100mg**
including Withanolides9mg**
Rhodiola Rosea Extract [root] (Rhodiola Rosea) [3% of Rosavins]100mg**
including Rosavins3mg**
Hollyhock Extract [leaves] (Ilex paraguariensis) [4-1]100mg**
Niacin (mg NE)50mg313
Vitamin B12 (Dibenoside)100µg4000%

Other ingrednients

Thickeners - cellulose gum, xanthan gum; Sweeteners - sucralose, sodium cyclamate, sodium saccharin; maltodextrin; Anti-caking agent - silicon dioxide.

Similar products
Best to combine with
£ 6.20

Highly absorbable lysine hydrochloride in vegan capsules. It improves collagen synthesis.

£ 6.22

Supplement with beta-alanine, L-histidine, sodium, and vitamin B6. Reduces fatigue, allowing longer workout.

£ 8.35

Effective protection against free radicals and comprehensive support for physically active people and not only.

£ 11.16

BCAA capsules. It works anabolic and anti-catabolic, improves endurance and helps regeneration.

Killer Labz
£ 29.84

A set of substances stimulating the functioning of nervous system. The product increases efficiency of body.

£ 5.15

Carbohydrate product for athletes. It provides more power and faster regeneration processes.





Beta-alanine (β-alanine) is a β-amino acid (the same group to which the I-alanine belongs, but with different chemistries). In combination with histidine, it forms β-alanyl-L-histidine (carnosine) - a antioxidant, chelating and buffering compound. Carnosine reduces the level of hydrogen ions in the cell and allows to extend the physical performance and endurance, it affects biological recovery after exercise. Beta-alanine is available in the form of single component and advanced amino-acid supplements, creatine stacks and nitrogen boosters.


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.





What is L-Citrulline?

L-Citrulline is an α-amino acid, ornithine derivative. It was isolated for the first time from watermelon and this is how it gained its name, as citrullus in Latin means watermelon. Citrulline takes part in oxygen processes of energy production during effort, thanks to which it is especially attractive for sportsmen of endurance disciplines. It also takes part in urea cycle, also known as the Ornithine cycle, thanks to which it helps to get rid of excessive amounts of ammonia from the organism.

It converts to l-arginine in kidneys and scientific studies suggest that is increases its level even more effectively than in case of sole arginine. Moreover, the increase of arginine level resulting from citrulline supply is longer and more stable. Thanks to this, it contributes to the increase of nitric oxide and widening of blood vessel lumen. This property makes citrulline useful in preventing cardiological incidents. The positive influence on the circulatory system is also used in case of erection disorders, as increased nitric oxide may initiate more effective blood flow to sex organs.

L-Citrulline is contained in the composition of many pre-workout supplements and NO-boosters directed at the improvement of sports abilities of the organism, which may be found in the offer of

Arginine alpha-ketoglutarate


Arginine alpha-ketoglutarate (AAKG) is a salt glutaric acid and arginine. The presence of these compounds results in intensification of the operation of each of them. Arginine alpha-ketoglutarate improves the bioavailability by stimulating the decomposition to CO2 and H2O, which means that it becomes a precursor in the synthesis of nitric oxide. It has anti-catabolic properties enhancing anabolism. Enhances the functioning of the insulin hormone, insulin-mimetics IGF-1) and somatotropin growth hormone.
AAKG is part of the pre-workout supplements (improving muscle blood flow and increasing the exercise capacity (strength and endurance)), as well as improves the recovery process after training. Most often used to increase the synthesis of nitric oxide (supplements pre- and post-workout), increasing muscle blood flow and regeneration. Particularly valued by the representatives of power sports, power and strength sports and strength athletics. Used very often in the rehabilitation of sports injuries.




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.




Taurine – non-protein amino acid containing sulphur, which is synthesized in the body from methionine and cysteine, present in sufficient amount in human or animal body (in the brain, heart and skeletal), although in some cases must be supplemented. 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 is an insulin-mimetic improving insulin metabolism, responsible for transport of nutrients (such as amino acids, glucose, creatine) to the cells and muscle tissue. These properties determine that it is a valued mono-preparation supplement and valuable addition to creatine and amino acid supplements, recommended for psycho-pchysically active people and athletes and other competitive sportsmen in pre- and post-workout periods.
Dosage: 3 grams 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.




Tryptophan is one of the nine essential amino acids that require high protein food consumption, mono-preparation supplements tryptophan, an amino acid type and EAA-day nutrients and protein, which is essential in the process of protein synthesis. A derivative of 5-HTP in the decarboxylation is a precursor of serotonin ((tissue hormone having an effect on blood pressure and peristalsis), and the subsequent processes of melatonin (the hormone sleep). It is used for synthesis of nicotinic acid (niacin, known as vitamin PP). The due to the appetite suppressant is also used in certain weight loss formulations.
Even a small deficiency is dangerous for the course of many physiological processes, can cause the nervous system deterioration of mood, insomnia, and disturbances in the digestive process. Tryptophan deficiency in the long term leads to depression and neurological disorders.
Mono-preparation supplements of tryptophan are recommended as a means of reducing the stress and reducing the feeling of insomnia. A part of the nutritional supplements type of EAA and all-day aminoacids, it is a valuable component of protein supplements. Available in store
Doses recommended in supplementation: 500 - 2000 mg at bedtime, alternatively 500 - 1000 mg before meals.



Inosine (purine nucleoside) is formed in the body during the degradation of adenosine involving the ADA, its ingredients are: hypoxanthine and ribose. Participates in energy conversion in the body and reduces the level of lactic acid in the cells and muscle tissue , providing increase of the exercise capacity and an extension of an effort time. Scientific research confirmed neuroprotective and anti-virus action of inosine. In the sports supplementation used in the disciplines of endurance and strength as a dietary supplement and support of the effort. Available in the form of mono-preparation supplements and complex multicomponent supplements (including creatine stacks, nitrogen boosters).
Dosage: 1-2g a day, mainly before and after training.




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


Theobroma cacao extract


Theobroma cacao extract - an extract from cocoa beans grown due to taste (cocoa, chocolate). Extracts of cocoa beans contain theobromine, a purine alkaloid with diversified operation. Theobromine causes the dilation of the cerebral blood vessels, resulting in improved blood circulation, improving its performance through actions nutrients, reduces the possibility of heart attacks and atherosclerosis acting in the coronary vascular system. In combination with polyphenols and caffeine has a thermogenic potential, allowing for an increase in energy expenditure and speed up the reduction of body fat. It has a negligible effect on the stimulation of the nervous system. It is widely used in sports supplementation as part of thermogenics, pre-workout creatine stacks and no-boosters




Theobromine (3,7-Dimethylxanthine) is a purine alkaloid, poorly soluble in water, present in cocoa beans, as well as the leaves of yerba mate, tea, coffee, cola and peanuts. It is a diuretic, lowers blood pressure and improves brain function (dilates the blood vessels of the brain). Also expands the blood vessels throughout the circulatory system, preventing atherosclerotic changes. Sometimes it is used in slimming diet. Combined with caffeine and polyphenols becomes thermogenic. In the sports supplementation formulations containing theobromine are used diuretics and fat burners. It is a component of thermogenics, pre-workout creatine stacks, as well as nitrogen boosters.

Ginseng (Panax ginseng)


Ginseng (Panax ginseng) standardized extract 27-30% of ginsenosides. The raw material is the ginseng root, from which is prepared the extract of substances called ginsenosides, containing 27-30% of this component. Ginseng root has been used for years in Oriental medicine. It shows the great biological activity: It increases mental and physical performance, increases vitality, is an antioxidant, strengthens the immune system, slows the ageing process.
In the sports supplementation extracts of ginseng support the exercise capacity (primarily oxygen metabolism of the body) and ensure fast renewal of muscular and nervous systems. Also enhances sexual ability. By standardizing, there is a higher concentration of the components, improving effectiveness, which raises the price of the product, but also guarantees its composition. Preparations of ginseng available at



Ginsenosides (triterpene saponins) are biologically active ingredient in ginseng root, its leaves and generative organs. Improve the oxygenation of the tissues of the body, affecting the increase in exercise capacity during the psychophysical effort. An antibacterial and antiviral strengthening immunity. By antioxidant action, limit the development of free radicals and membrane protein brain. Improve sexual ability. Used in sports supplementation at different levels of training. Improve concentration and ability to memorize. Available in mono-preparation supplement and herbal blends, herbal-mineralizing and herbal vitaminizing blends.
Dosage: 10-50 mg per day.



Ashwagandha (Wythania somnifera / Indian ginseng) - a plant of the nightshade family, used in Oriental medicine as a means of adding vitality, improves the psychophysical condition. It is used as an aphrodisiac. The root of the plant is a rich source of bioactive compounds (phytosterols, glycosides, withanolides etc.). The sports supplementation, herbal preparations, a positive effect on the nervous system (reduces stress, and accelerates the adaptation to changing conditions psychophysical), hematopoietic and immune systems. It has a decisive influence on the process of synthesis of nitrogen oxides and the level of certain hormones, including testosterone (e.g. improving sexual functions).
Ashwagandha (
Withania somnifera) is a component of the complex herbal supplements (as well as sets of adaptogens) increase the level of the male sex hormone (testosterone), supporting the sexual function of the body, supporting regeneration and having a calming effect.
Dosage: 300-600 mg of extract per day.



Withanolides - biologically active compounds belonging to the group of steroid lactones, occurring in some green plants. In supplementation they are perceived mainly as active substances of Withania somnifera, commonly called Ashwagandha. The percentage content of withanolides in Ashwagandha extracts is considered the indicator of the product’s quality - the higher the content, the more effective the supplement. In non-standardized extracts, the content of withanolides is estimated for 1% of dry muscle mass of Withania somnifera leaves.

Being the main active substances of Ashwagandha, withanolides are responsible for the majority of effects of its application. Regular supplementation with Withania somnifera extracts demonstrates adaptogen effect. It increases the organism’s tolerance to stress factors, holistically promoting the functions of the organism. It may decrease cortisol level in case of its excessively high concentrations, promote cognitive abilities and facilitate concentration. Supplementation with Ashwagandha also supports maintaining proper daily rhythm and is conducive to falling in a deep sleep.

Some sources also indicate that supplementation with Withania somnifera extracts positively influences the level of testosterone in the organism. Current research results indicate, however, that this effects of supplementation may be achieved only in people with initially excessively low secretion of the male sex hormone.


Rose root (Rhodiola rosea)


Rose root - (Rhodiola rosea) - due to the use in Oriental medicine, the root is also known as Golden Root. The use of preparation improves psychophysical capacity, reduces fatigue, improves mood, relieves stress and depression. It includes a variety of biologically active ingredients, such as flavonoids, polyphenols, tannins and proanthocyanidins. In the sports supplementation extracts from the golden root are used in the period of intensive training in order to improve the resistance to overload, in cases of stress overload, for improving the well-being and accelerate post-workout recovery time. The root of Rhodiola rosea is available as mono-preparation supplements and it is a component of supplements of versatile action. In clinical trials, in the treatment of moderate depression, a dose of 380-680mg / 24h was administered, without side effects.



Vitamin B3


Vitamin B3 (vitamin PP, niacin, nicotinic acid, nicotinamide) is niacinamide niacin. It is used in interaction with vitamins B1, B2 and B6 in the synthesis of hormones during lactation. It provides proper functioning of the brain and nervous system. It is helpful in inflammatory conditions of the skin. Required for synthesis of sex hormone, estrogen, testosterone, cortisone, and insulin. It does not lose its properties in the manufacturing and storage. The source of acquiring vitamins PP are both products of animal origin (the lean meat, eggs, fish) and vegetable origin (dates, figs, hazelnuts, plums).
Dosage: 2-12 mg / day for children, 14 mg / day for women, 16 mg / day for men and 17-18 mg / day for pregnant or nursing women.


Vitamin B12 (Cobalamin)


Vitamin B12 (cobalamin, cyanocobalamin) is a vitamin soluble in liquids. Participates in the production of red blood cells and is essential in the absorption of iron by the body. It calming effect, a positive effect on concentration and memory. Intensifies its action in cooperation with folic acid (vitamin M). Usually occurs in animal products, fish and dairy products. It contains trace elements.
Vitamin B12 deficiency can lead to pernicious anaemia, general and immunity weakness, inhibiting of growth and damage to the myelin sheath of nerves.


Latest on blog

Sign up for our newsletter
And receive coupons, news, special offers and much more!

Customer service

MZCatalog - recommended dietitians

MZCatalog - recommended trainers

MZCatalog - recommended clubs

Supps4You LLC
Unit 3 Enterprise Court, Farfield Park Rotherham S63 5DB +44 7767803657