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M1T (Methyl-1-testosterone)

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Methyl-1-testosterone (M1T) was first researched in 1962.  The 60s was actually an extremely active time for steroid research.  There were literally hundreds of different anabolic agents that were being actively studied and pursued by drug companies.  M1T had a very favorable ratio of anabolic to androgenic effect, so there was much promise with this compound.  But like many other steroids being studied at this time, it was not selected to be developed as a medicine.  There were only a select few agents that were given the money for full studies and eventual release.  For no clear reason M1T was not selected and it lay dormant in the medical books for forty years.  M1T reemerged in 2003 when it was introduced as a “dietary supplement” in the United States.  Since it was relatively unknown, it was not specifically listed in the 1991 law controlling anabolic steroids.  This allowed the company Legal Gear to manufacture it legally.  M1T however did not last long.  On January 20, 2005 a new law came into effect banning many new compounds including M1T.

Geneza Pharmaceuticals M1T


Methyl-1-testosterone is the methylated version of the steroid 1-testosterone.  It is a DHT derivative.  It cannot convert to DHT or estrogen.  M1T is 910-1600% as anabolic and 100-200% as androgenic as methlytest.  There is a structural modification that allows the compound to survive the first pass through the liver.  This is what makes it extremely orally bioavailable but also liver toxic.

Cycles / Dosages

A typical dose for M1T would range from 5mg per day to 20mg per day depending on experience.  It is extremely powerful and extremely liver toxic.  Due to this it is not recommended to run a cycle for more than 2-4 weeks.  Many users will start at a lower dose and taper up depending on side effects and results. It is very possible to add 15-20lbs on a 2-4 week cycle of M1T.  Users will often stack injectables such as testosterone with an M1T cycle.

Regardless, if you stack it or not, N2Guard must be run while on M1T to protect the liver.   A PCT (post cycle therapy) will absolutely need to be run since M1T will suppress natural testosterone production.  When run on its own, a mini-PCT will suffice due to the short length.  I would recommend something like a 4 week PCT with the following:

*For a longer cycle where M1T is used as a “kickstart” such as testosterone for 12 weeks and M1T for 4 weeks I would recommend a complete PCT. This is what I would follow: Perfect PCT

m1t banned

Side Effects

We have already discussed liver toxicity but there are other side effects that come with the use of M1T.  Probably the most common and toughest to deal with is lethargy.  Users may become extremely fatigued throughout the day while using this compound.  It is the reason many people will keep their dose closer to the 10mg per day mark.

Another side effect which is common with many oral steroids is elevated blood pressure.  This is not something to take lightly.  In addition, a side effect similar to one that comes with anavar is possible nosebleeds.  It is not known why this happens with M1T use but it has been reported.

Other possible side effects include muscle cramps (lower back, calves), lack of sex drive, increase in sex drive, HPTA suppression, hair loss for those prone to male pattern baldness, BHP or increased size of prostate, aggressiveness, headaches, irritability, insomnia, and a decrease in appetite.  The nice thing is that M1T does not aromatize, so there is no risk of estrogen related side effects.

Editor note:  There have been cases of high progesterone levels after M1T use; however, these are purely anecdotal and come from users on the forums.


The half-life of Methyl-1-testosterone is similar to most oral steroids but slightly longer.  It is reported to be between 9-12 hours.  There are still some people that will argue that the true half-life is 48 hours based on effects after usage is ceased.  It is best to split the dose into 2 per day but 1 will work if it is necessary.


M1T is one of the most potent and toxic oral steroids ever created.  The only way to find this product now is on the black market manufactured by underground labs.  If you are looking to pack on some serious mass and strength then this compound will definitely do the job.  It is also great since there is no water retention.  The main thing to keep in mind is that the side effects can be tough to tolerate even for experienced PED users. All precautions must be taken to keep yourself safe and it should never be run by someone not in tip-top shape.


Want to learn more about M1T? read our forums...


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Matt Ashlar is a full time dad and an amazing bodybuilder. He has over 10 years of experience in bodybuilding, fitness, TRT and sarms. He's been at the forefront of supplement design and industry leaders. He has trained many bros in the community and helped guys iron out their cycles. He's a true PhD in our industry. He has the knowledge and the looks.

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