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Myo Inhibitor - GN Laboratories

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GN Myo-Inhibitor Real myostatin inhibition for maximal muscle growth!

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41,19 €

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0.4 kg
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GN Myo-Inhibitor Real myostatin inhibition for maximal muscle growth!


Product highlights


  • lowers myostatin to allow for maximal muscle growth
  • supports the accrual of lean muscle mass and rapid strength gains
  • is among the the few myostatin inhibitors that actually work!
  • decreases serum myostatin by 40-50%
  • takes only 12-18h after the first serving to take full effect
  • works for 100% of the test subjects
  • annihilates the natural limit to muscle growth
  • is highly soluble for superior absorption and bioavailability
  • contains probiotic bacteria to maximize absorption & bioavailability
  • promotes muscle growth via a unique mechanism and will thus synergize with almost all currently available pro-anabolic supplements
  • is 100% natural and side-effect free


GN Laboratories Myo Inhibitor, the world’s first and only working over-the-counter pro-anabolic sports-supplement to target the growth inhibitor myostatin, is a true technological breakthrough. Contrary to the majority of the hitherto available muscle builders that was designed to increase skeletal muscle protein synthesis and is thus destined to become less and less efficient the closer a trainee comes to his or her physiological growth limit, Myo Inhibitor breaks through the natural growth plateau by inhibiting the growth limiting increases in myostatin.
If you train without Myo Inhibitor that’s like driving without a fastened parking brake: a non-significant part of the exercise and nutrition induced growth stimulus will simply fizzle out. For our product designers here at GN Laboratories the development of an agent that would allow us to keep the endogenous (=your body’s own) myostatin production in check and thus allow for faster and above all steadier muscle gains did thus have top priority on their agenda. Now, after months of research, our research team has finally come up with a supplement that accomplishes just that: Myo Inhibitor is the first natural myostatin inhibitor that actually works.
Some of you are probably now asking themselves what exactly one can expect from this unique breakthrough product. The answer to this well-warranted question is pretty straight forward. Several scientific studies have revealed that the inhibition of myostatin can exert much more pronounced anabolic effects than anabolic agents. Moreover, it works via a distinct pathway and will thus synergize with virtually every other currently available anabolic agent.

Just imagine, what would happen, if you would (a) stimulate muscle growth and (b) inhibit the mechanism that limits human skeletal muscle growth… the resulting muscle and strength gains will surpass everything you’ve seen before.

And while this may sound as if GN Laboratories’ Myo Inhibitor was a supplement for people who strive to become true “mass monsters”, it is at least as useful to men and women who want to counter the age-related decline in muscle mass, which is – at least in part – a result of the age-related increase in myostatin levels.

It does not matter whether you are an aspiring bodybuilder, an ambitious fitness enthusiast, a model or a health-oriented recreational trainee. Myo Inhibitor will help you to make the most of your workouts.

So what are you waiting for? Get your bottle of Myo Inhibitor today and unlock the door to unlimited muscle growth. Do not hesitate and have myostatin ruin all your hard work! Release the hypertrophy break and grow! Partner up with GN Laboratories‘ Myo Inhibitor and catapult your lean mass gains into a whole new dimension.


What exactly is myostatin? And why do you want less not more o fit?

Myostatin, which is also known as „growth differentiation factor 8 (GDF-8), is a protein from the TGF Beta family. It occurs naturally in the body of all mammals – including human beings – and belongs to a whole family of proteins which orchestrate the growth of skeletal muscle mass. Contrary to other growths factors such as IGF-1, myostatin does yet not promote muscle growth. On the contrary: Myostatin is like the parking brake that inhibits the differentiation and growth of skeletal muscle – a growth antagonist, if you will.
At first sight it may not really make sense that our bodies would produce a “growth factor” whose main function it is to block growth, right? From an evolutionary perspective, it is however essentially important to be able to limit the growth of energetically costly muscle tissue. Similar agonist vs. antagonist pairs can be found almost everywhere in the human body, with the glucose lowering effects of insulin and the gluconeogenic and thus glucose raising effects of glucagon being only one of the most prominent examples of similar regulatory mechanisms.
Myostatin is primarily produced within the cells of the skeletal musculature from where it is released into circulation, where it interacts with the activin II receptor to exert its anti-anabolic effects. The latter are mediated by two distinct pathways: The inhibition of satellite cell (=muscle precursor cells) differentiation and the blockade of the protein synthetic AKT pathway. In short, as long as you got too much myostatin floating around, neither the size nor the density of your muscles is going to increase.


What can you expect from a supplement that inhibits myostatin?

A whole host of scientific studies has shown that the inhibition of the production or local action of myostatin can have dramatic effects on muscle growth. Shortly after the discovery of the gene that’s responsible for the production of myostatin, scientists were able to clone the first myostatin negative mice, a strain of mice developed two times more muscle mass than their wild-type relatives (1) – and that, as you would expect it from the average rodent – without any additional strength training ;-)
Cloning is yet not even necessary to observe the muscle building prowess of lower myostatin levels. In fact, there are two breeds of cattle with a natural mutation of the myostatin gene. Compared to regular cattle these beasts grow 40% more muscle (2,3) and look – as the image below goes to show you – simply enormous.


As studies in primates show, the total inhibition of myostatin via genetic means is yet not even necessary to induce dramatic increases in skeletal muscle mass. In pertinent studies, even a 20% reduction in myostatin produced highly significant increases in muscle growth (4). And from related rodent studies we know that no more than two weeks on a pharmacological myostatin inhibitor can produce highly significant increases in lean body mass (5).

It may sound surprising at first, but the majority of bodybuilders and strength athletes has probably already been using a weak myostatin inhibitor without even knowing it: creatine! As recent studies have shown, the go-to supplement for anyone seeking to improve his strength and size gains, is actually able to produce a small, but significant decrease in the circulating levels of myostatin (6) – and while this is not its main mechanism of action, the myostatin inhibiting effects of creatine do unquestionably contribute to its muscle building effects.


How exactly does GN Laboratories’ Myo Inhibtor work?

GN Laboratories’ Myo Inhibitor significantly reduces the production of endogenous myostatin. Studies revealed that the active ingredient of the product produces average serum myostatin reductions of 40% and more – and that withing 12-18h after the first ingestion!
Against the background of what you’ve learned about myostatin in the previous paragraphs, it should be obvious that this physiologically highly relevant reduction in myostatin entails significant increases in skeletal muscle anabolism. The inhibitory effect is yet not pronounced enough to cause any of the negative health effects that have been observed in myostatin negative mice. Moreover, the relatively short half-life of the product (the myostatin levels will return to baseline within 24-30h) contributes to the overall safety of the product.


What distinguishes GN Laboratories Myo Inhibitor from the competition?

There is one thing that really sets GN Laboratories’ Myo Inhibitor apart from all the other currently available over-the-counter “myostatin inhibitors” - it’s efficacy! It is sad, but true: Ever since the muscle building effects of the blockade of myostatin signaling was discovered back in 1997, trainees all around the world have been fooled time and again by the promises on the boxes of purported and often hilariously overpriced myostatin inhibitors. The vast majority of these products produced either no, or at least no physiologically relevant effects and have consequently disappeared from the market after a couple of weeks… or do you remember a product that has been around for longer than 1-2 months before even the last customer realized that it was nothing but a rip off?
Actually, we know only a single currently available product that contains an agent that has been shown to be even remotely as effective as active ingredient in Myo Inhibitor. Unfortunately this extract does not only taste horrible, it is also absolutely insoluble, clumps and won’t mix, no matter what you do. Now you may believe that this should not pose such a big problem. After all, it’s the effect and not the taste or convenience of the product that matters, right? Correct, but a product that does not dissolve is also hard to absorb. In the end, the low solubility of the said product is thus not simply inconvenient. It renders an otherwise promising supplement virtually useless.
Think of our very own Creatine Polyhyrate™. The patented combination of creatine HCL and probiotics is 59x more soluble than creatine monohydrate and it is this extreme high solubility that makes Creatine Polyhydrate™ 6.6x more efficient than regular creatine monohydrate. You will be hard pressed to find a better example to explain why solubility and bioavailability were the primary and costs and availability of the ingredients only secondary criteria, when our product designers selected the raw materials for our newest lean mass builder.


Why does GN Laboratories Myo Inhibitor contain probiotics?

Scientific studies show that probiotics have the exciting ability to increase the bioavailability of amino acids, such as creatine or glutamine by up to 20%. Similar effects may be observed, when they are combined with the myostatin blocking agents in our Myo Inhibitor. It was therefore self-evident that we would use the same patented microencapsulated Lactobacillus Acidophili we’ve also used in Creatine and Glutamine Polyhdrate™ in our newest pro-anabolic powerhouse, as well. By this means, we were able to boost the already superior bioavailability of the expensive raw materials in Myo Inhibitor to previously unthought-of of levels.

The beneficial effects of the probiotics in Myo Inhibtor are yet not confined to their ability to boost the bioavailability of the active ingredients of the product. Within the last years, it has become increasingly clear that probiotic bacteria have distinct beneficial effects on a whole host of aspects of human health. Bacteria that belong to the lactobacillus strain, for example, will help you to maintain a healthily low pH level in the small intestine and will thus prevent its colonization with pathologic bacteria.
Moreover, probiotics produce metabolic byproducts with the unique ability to stimulate the immune system. In fact, recent scientific studies provide compelling evidence that there is a direct causal relationship between the composition of the gut microbiome and the efficacy of our immune system. If the bacterial ecosystem in your digestive tract harbors an insufficient amount of beneficial bacteria you will thus be highly susceptible to infections.
The added probiotics in Myo Inhibitor do thus serve two different purposes: They increase the absorption, bioavailability and efficacy of GN Laboratories‘ Myo Inhibitor and promote the health of your immune system.

Unfortunately, probiotic bacteria are very susceptible to environmental influences. This is a real problem, because they are useless, when they are destroyed before they reach their destination in your digestive system. To prevent that from happening, we use only microencapsulated probiotics that are protected against all environmental assaults. This ensures that all the probiotic bacteria in our newest muscle building formula actually make it to their destination in your intestine.


The GN Laboratories Quality Guarantee

We use only the purest, highest grade ingredients the market has to offer. To ensure the constant quality of all our products, we conduct regular laboratory tests to ensure the purity and quality of all ingredients.




  1. McPherron AC, Lawler AM, Lee SJ (May 1997). "Regulation of skeletal muscle mass in mice by a new TGF-beta superfamily member". Nature 387 (6628): 83–90.
  2. Kambadur R, Sharma M, Smith TP, Bass JJ (September 1997). "Mutations in myostatin (GDF8) in double-muscled Belgian Blue and Piedmontese cattle". Genome Res. 7 (9): 910–6.
  3. Grobet L, Martin LJ, Poncelet D, Pirottin D, Brouwers B, Riquet J, Schoeberlein A, Dunner S, Ménissier F, Massabanda J, Fries R, Hanset R, Georges M (September 1997). "A deletion in the bovine myostatin gene causes the double-muscled phenotype in cattle". Nat. Genet. 17 (1): 71–4.
  4. Kota J, Handy CR, Haidet AM, Montgomery CL, Eagle A, Rodino-Klapac LR, Tucker D, Shilling CJ, Therlfall WR, Walker CM, Weisbrode SE, Janssen PM, Clark KR, Sahenk Z, Mendell JR, Kaspar BK (November 2009). "Follistatin gene delivery enhances muscle growth and strength in nonhuman primates". Sci Transl Med 1 (6): 6ra15.
  5. Lee SJ, Reed LA, Davies MV, Girgenrath S, Goad ME, Tomkinson KN, Wright JF, Barker C, Ehrmantraut G, Holmstrom J, Trowell B, Gertz B, Jiang MS, Sebald SM, Matzuk M, Li E, Liang LF, Quattlebaum E, Stotish RL, Wolfman NM (December 2005). "Regulation of muscle growth by multiple ligands signaling through activin type II receptors". Proc. Natl. Acad. Sci. U.S.A. 102 (50): 18117–22.


  • Titel:Hammer
    Wat für'n geiles Zeuch!!!
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    Ganz Klar 5 Sterne
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    Sehr gutes Produkt mit unglaublicher Wirkung.
    Kann ich nur empfehlen.
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Directions for GN Myo-Inhibitor

As a dietary supplement take one scoop (10g) of MYO-Inhibitor daily. MYO-Inhibitor can be eaten as a dry powder or you can also prepare as a drink by mixing one scoop in approximately 6-8 ounces (177-236 mL) of cold water and consume immediately. For best consistency, mix in a blender.



Read and follow all label instructions prior to use. Do not use if pregnant or nursing. Not intended for persons under the age of 18. Consult with a physician before using this, or any other product, if you are taking medication or have any medical condition.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. KEEP OUT OF REACH OF CHILDREN.


Myostatin – Regulator des Muskelwachstums
1997 wurde erstmals der Wachstums- und Entwicklungsfaktor „Myostatin“ von Wissenschaftlern der Johns Hopkins Universität beschrieben. Gezielte Mutationen (Genveränderungen) bei Mäusen, im Sinne eines Ausschaltens dieses Gens, führte zu einem massiven Anstieg der Muskelmasse der Tiere. Weitere Forschungen ergaben kurze Zeit später, dass eine Störung dieses Gens für die extrem muskulöse Erscheinung zweier Rinderrassen (z.B. Belgian Blue Cattle) verantwortlich ist.


Myostatin ist ein Protein (Eiweiß) das zu einer Gruppe von Proteinen gehört die bei der Regulation des Zellwachstums eine Rolle spielen (sog. TGF = transforming growth factor Proteine). Es wird in den Muskelzellen gebildet und begrenzt deren Wachstum. Starke Muskelmassenverluste wie sie bei Patienten mit einer HIV-Infektion auftreten oder auch nach Immobilisation (Ruhigstellung) bzw. nach Aufenthalt in Schwerelosigkeit führen zu einer verstärkten Bildung von Myostatin. Die Differenzierung von Satellitenzellen in der Skelettmuskulatur zu Muskelzellen wird durch Myostatin gehemmt. In Tierexperimenten fand man auch eine Verminderung der Myostatinexpression durch körperliches Training. Keine Akne von den Steoriden und keine großen Ohren von den Wachstumshormonen. Einfach synthetische Gene mit einer Art Gentaxi in die Muskelzellen schleusen und der Olymp naht. Zur Behandlung des Muskelschwundes testeten Wissenschafter bei Mäusen spezielle Antikörper oder kleine RNA-Moleküle (small interfering RNA), die die wachstumshemmende Wirkung des Myostatins verhindern. Die Mäuse entwickeln sich zu vierbeinigen Muskelpaketen, die gesundheitlichen Risiken sind, zumindest beim Tier, gering. Es scheint somit eine Frage der Zeit, wann auch Sportler zur Genspritze greifen.

26. Juni 2004 An der Charite in Berlin ist vor einiger Zeit ein Baby mit ungewöhnlich stark ausgebildeter Muskulatur zur Welt gekommen. Ein genetischer Test erwies eine Mutation in beiden Erbanlagen humanen Myostatins, einem Eiweiß, das in Tierversuchen als Muskelwachstumshemmer identifiziert worden war. Es löst in mutanten Mäusen ebenfalls ein übermäßiges Wachstum von Muskelgewebe aus. Das berichten Dr. Markus Schülke und seine Kollegen in der aktüllen Ausgabe von The New England Journal of Medicine.
Die Mutter des Neugeborenen wurde ebenfalls auf die Mutation hin getestet. Man fand, dass bei ihr eine der beiden Erbanlagen defekt war. Interessanterweise war sie professionelle Sprinterin und stammt aus einer Familie mit vielen starken Angehörigen: Ihr Großvater z.B. war Bauarbeiter, der 330 Pfund schwere Steine heben konnte. Der jetzt 4 jährige Junge ist bisher körperlich gesund und kann mittlerweile 6.6 Pfund schwere Gewichte mit ausgestreckten Armen halten.

Forscher hoffen, dass man durch Blockade des Gens oder mit Antikörpern gegen Myostatin eines Tages Muskelschwächen wie Muskeldystrophie behandeln kann. Auch könnten Athleten mit Hilfe solcher Medikamente die Menge an Myostatin in ihren Körpern senken. Denkbar wären in Zukunft natürlich auch Designer-Babys, bei denen das Myostatin-Gen ausgeschaltet ist. Nichts bekannt ist bisher über die Nebenwirkung einer Myostatin-Blockade.


Aus den bisher gewonnenen Erkenntnissen ergeben sich neben der möglichen Vorhersagbarkeit von Kraftentwicklung unter leistungssportlichen Training sowie der möglichen Beeinflussung der Kraftentwicklung im Sinne von Doping insbesondere mögliche Ansatzpunkte für die Nutzung zur Behandlung von Muskelerkrankungen.
Man könnte Patienten helfen, die aus verschiedenen Gründen an Muskelschwund leiden, etwa an der erblichen Muskeldystropie (Duchenne` schen Erkrankung), die schon Kinder betrifft, oder auch Patienten im Alter oder mit Erkrankungen, in deren Folge Muskelschwund auftritt. Man wird versuchen, durch Medikamente das Myostatin teilweise oder ganz zu blockieren, um so das Muskelwachstum anzuregen.


Bedarf im Sport

Gendoping könnte einerseits zur Bildung von mehr Muskelmasse bzw. von schnelleren Muskelfasern führen oder die körpereigene Stimulation der Synthese von Hormonen wie zum Beispiel Erythropoietin oder von anderen anabolen Wirkstoffen anregen. Die Welt-Anti-Doping-Agentur WADA hat vorsorglich genverändernde Verfahren auf die aktualisierte Verbotsliste gesetzt. Für die Olympischen Spiele in Peking wird diese Methode voraussichtlich ein großes Thema sein.

Mitarbeiter des Kölner Kompetenzzentrums für präventive Dopingforschung arbeiten bereits an einem Bluttest auf Gen-Doping. Ziel ist es, Veränderungen in den Genen an Verschiebungen im Proteinprofil des Plasmas erkennen zu können. Ebenso könnten auch Gewebeproben Hinweise liefern. Auch die Kombination mit einem Lügendetektor wurde bereits erwogen. Diese nicht unumstrittene Methode wird bereits bei der World Natural Body Building Federation angewendet.

Es wird empfohlen die Anweisung des jeweiligen Produktes zu beachten. Nebenwirkungen sind noch nicht bekannt.


  1. Dr. Jens-Peter Weber, Medizinischer Referent der DGM, Myostatin – Regulator des Muskelwachstums
  2. "New England Journal of Medicine" ([2004] 350, 38-44)
  3. GINA KOLATA, New York Times online/ A Very Muscular Baby Offers Hope Against Diseases. June 24, 2004
  4. Matthias Bastigkeit, Fachdozent für Pharmakologie, (12.08.2004) Doping – mit Gentherapie und Insulinspritze höher, weiter, schneller? Olympische Sommerspiele 2004 (http://www.medizin.de)

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