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M-Sten Rx by IronMagLabs

M-Sten Rx by IronMagLabs



Add Cycle Support (Extremely Important):

Add Post Cycle Therapy (Very Important to help KEEP your gains)

Maximize your PCT! Stack with Test Booster!!:

Regular Price: $49.95

Special Price: $39.95

Looking for a serious dose of Methylsten from a reputable company?


M-Sten RX by IronMagLabs


Looking for a serious dose of Methylsten from a reputable company? IronMagLabs is pleased to bring you M-Sten Rx. With 10MG of Methylsten you will see great results! You don't need to worry about estrogen conversion, only training your hardest to get the huge gains you want. 

With M-Sten RX you'll quickly experience fuller muscles and some mind boggling pumps at the gym. Gain muscle and stop worrying about estrogen conversion with one of the strongest products on the market!


60 Capsules

Mass & Strength Agent



-Size Gains

-Mass Gains

-Zero Estrogen Conversion

-Fuller Muscles

-Strength Gains


Supplement Facts
 Serving Size: 1 Capsule
 Servings per container: 60
 Amounts per serving%DV
2,17a-dimethyl-17b-hydroxy-5a-androst-1-en-3-one 10mg **
**(DV)Daily Value Not Established    

 Other Ingredients: Rice Flour, Gelatine, Magnesium, Sterate, Stearic Acid, and Silica.  


M-Sten Rx™ is a newly formulated serious compound engineered and designed to increase, sustain, and strengthen muscularity through multiple pathways.

M-Sten Rx™ will produce dry gains, harder/leaner muscle, and increased vascularity from one workout to the next workout.

M-Sten Rx™ will help increase lean muscle mass and strength at a higher level than ANY product currently on the market.

Suggested Use: 

As a dietary supplement, take one (1) capsule twice daily with food. 
Use in cycles of 4 weeks only and take at least 8 weeks off in between cycles.

This product should only be used by healthy adults at least 21 years old. Do not exceed the recommended dose or duration of 4 weeks. Do not use if you are at risk of, or being treated for diabetes, liver problems or high blood pressure. Do not drink alcohol while using this product, and increase daily water intake. This product can negatively affect male fertility. Always Consult your health care professional before using any dietary supplements. 

Do not exceed the recommended dose or duration. This product should only be used by healthy adults at least 21 years old. Do no use if pregnant or nursing, or if you are at risk of, or being treated for diabetes, liver problems or high blood pressure. Consult your health care professional before using any dietary supplements. 


Average Rating:
based on 6 reviews

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  • Verified Buyers
  • Administration Response
  • Highest Contributors

6 Item(s)

VinGatsby Verified Buyer February 8, 2014
  • more than 2 month(s)
Best Supplement Ever
  • Well, I did this supplement for 1 month, taking 2 capsules per day. My starting weight was 162 and my ending weight was 187. I have been off the pill for over 1 month and my weight has stabilized at 183. Definately the most awesome product for weight gain I have ever tried and it made me want to work out FOREVER. No crazy side effects or anything like that; just made me want to lift! And I was lifting a whole lot more than I ever had! No crazy diet; I did eat quite a bit tho. I cant wait to do another cycle of this stuff.
  • Great gains, great pump, my arms BLEW UP!
  • Nothing really. My muscles hurt bad because I couldnt stop lifting!
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Jonathan Verified Buyer April 20, 2013
best out right now
  • this stuff kicks in in about 3 days.started at 165 up to 178 in 3 weeks one more to go.good diet high protein.strength is thru the roof comparable to d-bol in my book.just some mild back pumps
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Unknown Verified Buyer April 9, 2013
Very Happy
  • so i started april 1 at 272, currenlty, i am at 279 and getting stronger by the day. Very happy with product, an will post my final result when finished. I also picked up the exo for the estrogen blocker, protex x for the on cycle, and pct from vital labs. I also added fish oil and Hawthorne berries and saw palmetto for extra support.
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Glen Zephyre Verified Buyer January 9, 2014
M Sten RX Rocks
  • I recently finished a 4 week course of M Sten RX and even though I was on vacation and not able to train regularly, I was still able to gain a solid 6 pounds of muscle over 4 weeks. Also,the Blockade is the best liver support on the market and I highly recommend buying these two products. I've recently returned home to Australia and have just received my Predator Plexx, Blockade and Post Cycle 3X and will give a review on these products in 4 weeks. The staff at Strong Supplement Shop are so professional and helpful, keep it up guys:-) Happy Aussie competitor.
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Rick Verified Buyer December 9, 2013
  • Strength gains are significative for a prohormone i compare it to dbol, its the first time that a prohormone work for me, my liver is just too strong i guess but this prohormone is really working, big pumps, after 2 weeks 5 pounds more and my libido is outrageous but i dont use it alone so it help. ! best prohormone ever !!!!
  • Strenght
  • Lethargy
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SteveO Verified Buyer March 30, 2014
4th week in 1st cycle
  • First cycle. I am currently starting my 4th week of this msten stacked with my 5th week of epi2a3a. Keep in mind I take liver support, joint support, gallon of water a day and vitamins/fish oil. Also taking creatine. This product hasn't helped me gain any significant size (mostly because I am trying to shed bodyfat by keeping my calories around 2k) but even with the low calories my strength gains are ridiculous. I have another week to go and my bench is already up 75 pounds. The strength you will get from this product will seriously blow you away. I give it 4 stars only bc the size gains aren't very significant in my case but step up the cals it will probly do wonders. sides- def some rage, oily face, joints are starting to feel dry. You will notice results at the end of the second week.
  • strength
  • moodiness, oily face,
  • You are having great results although being on two phs your body requires a serious amount of intake. As you mentioned if you step up your eating you will see size gains as well. Either way glad its working well for you.
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6 Item(s)