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The Monster Stack

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The Muscle Stack


(137 customer reviews)

One of our best stacks to gain Muscle Mass!

  •  Increase of Lean Body Mass(LBM)
  •  Decreases fat tissue by increasing muscle
  •  Improvement of Muscle Strength and Physical performance
  •  Improvement of Bone Strength
  •  Treatment of Neurodegenerative diseases
  •  Increased quality of Sleep(REM quality) and sleep duration
  •  Improved quality of Skin, Hair, and Nails
  •  By increasing IGF-1 it can improve memory and learning
  •  Faster healing of wounds and Tissue Regeneration


The muscle stack is one of the best ways to gain muscle fast!


RAD-140 builds muscle and burns fat. With multiple published human trials under its belt, RAD-140 (also called Testolone) is one of the best-studied SARMs. Those studies found powerful results, too. Testolone shows no meaningful side effects and is very effective at building muscle.

Users have said they lost body fat on Testolone (RAD140) and this is due to an increase in metabolism. When you increase lean muscle mass, you also will have an easier time losing body fat.

RAD-140 has greater anabolic effect than testosterone. Elderly men and women who took modest doses of Testolone for 12 weeks grew 3 pounds of muscle and lost a pound of fat, with no changes to diet or exercise. Cancer patients saw nearly identical results along with a similar timeframe. There were no side effects in either study. A pound of muscle a month is about what you would expect with a solid workout routine – but the people taking Testolone in these studies weren’t exercising. Combining the two would be even more powerful, in theory. Pretty impressive!

  •  Increase of Lean Body Mass(LBM)
  •  Decreases fat tissue by increasing muscle
  •  Improvement of Muscle Strength and Physical performance
  •  Improvement of Bone Strength
  •  Treatment of Neurodegenerative diseases
  •  Clinically shown to suppress cancer cell growth by blocking the effects of estrogen on tissues

Sarm Usa Rad 140 Structureproduct

Ingredients: 2-chloro-4-[(1R,2S)-1-[5-(4-cyanophenyl)-1,3,4-oxadiazol-2-yl]-2-hydroxypropyl]amino-3-methylbenzonitrile,organic MCT oil, natural lemon flavor with stevia.


MK-677 (Ibutamoren) promotes the secretion of the growth hormone(GH) and increases insulin-like growth factor 1(IGF1). It can increase the growth hormone by selective mimicking the hormone Grelin and binding to one of the ghrelin receptors GHSR in the brain. When GHSR has activated, it releases spikes of growth hormone. MK-677 is so great because it increases growth hormone levels but doesn’t increase in other hormones such as cortisol.

Ibutamoren is frequently used to increase lean body mass i.e., create bigger muscles. As previously mentioned, ibutamoren increase growth hormone levels and IGF-1. Both growth hormone and IGF-1, in turn, increase muscle mass, muscle strength, and reduce body fat. In 24 obese men, a two-month treatment (DB-RCT) with Ibutamoren increased lean mass, and transiently increased basal metabolic rate (BMR).

During a study (DB-RCT) in eight food-deprived healthy volunteers, ibutamoren reversed diet-induced protein loss, that could cause muscle wasting. In 123 elderly patients with hip fractures, ibutamoren improved gait speed, muscle strength and reduced the number of falls (RCT).

Growth hormone increases tissue regeneration and wound healing, so ibutamoren may help with these.

  •  Improve exercise endurance and capacity
  •  Improved muscle mass
  •  Improved bone density
  •  Managed body composition
  •  Increased quality of Sleep(REM quality) and sleep duration
  •  Improved quality of Skin, Hair, and Nails 
  •  Transiently increase metabolic rate which results in losing body fat
  •  By increasing IGF-1 it can improve memory and learning
  •  Faster healing of wounds and Tissue Regeneration

Sarm Usa Mk 677 Structureproduct

Ingredients: R)-1’-(2-methylalanyl-O-benzyl-D-seryl)-1-(methylsulfonyl)-1,2-dihydrospiro[indole-3,4’-piperidine], organic MCT oil, natural lemon flavor with stevia.

137 reviews for The Muscle Stack

  1. Anonymous

  2. Brandon M.

  3. Mathieu C.


  4. Sylvain

    Quick delivery, it is the first time that I ordered from SARM USA. Let’s see if the product is good!

  5. Anonymous

    Good service, fast delivery! And good quality of sarms. I like these!

  6. Anonymous

    Great product and fast shipping

  7. Anonymous

    Happy with both products. Seeing fairly quick gains.

  8. Eric Gelinas

    just the taste a little bad LOLL

  9. Xander

    Great product, only bad thing I could say is that the mm-677 tastes real bad and I personally needed juice or something to get the taste out before bed. But works great!

  10. Scott P.

    Great stack!!

  11. E.Nadeau

    Legit.. Work well!

  12. Anonymous

  13. Todd

  14. Tommy

    everything is great, gainz and stuff, no bad side effects.

  15. David M.

    Came pretty quick, one week in im up 3lbs and already getting toned as hell. Excellent products

  16. Frank Muir


    It’s still early, only been using the products for about 5 days. Should have a better idea in about a week from know. Feel free to resend another survey in a week.

    Shipping was fairly quick, I’m very satisfied with the logistics.

    I am already planning to purchase another order in the near future.



  17. Lorne Adamarczuk

    Easy to order & it came fairly fast.. price is good.. this combination works great.. will order again from you guys! Keep up the good work!

  18. Dennis Gardner

    Too early to tell just started taking them so can’t give a real rating yet. Also did not get a shipment notice email so i was left guessing but did the delivery extremely fast

  19. Anonymous

  20. Landry Vince

    I will order another stack !

  21. Lucas

    Thank you Anthony I am very pleased.

  22. Francis Brideau

  23. Brad

  24. Dalton

    Great product, pure quality and real results

  25. Anonymous

    Great service.

  26. Frank

    Great products, have ordered my second cycle and the gains are very noticeable after 4 weeks. Very happy with the quality of product.٪

  27. Deon S.

    After taking it for a week muscles felt alot more solid and started to show more definition in biceps strength increases was awesome.

  28. Maxime Gravel

  29. Trystan N.

    Arrivé rapidement! Un goût fort, mais tout le monde sait qu’on doit souffrir pour être se que l’ont veut.
    Je recommande!

  30. Veronique Lebreux

  31. STEPHANE HARVEY #1536 Harvey

  32. Jason

    Very easy and streamlined process

  33. Eric L.

  34. Jesse

    I noticed the taste changed. Did you remove the lemon?

  35. Antoine P.

    Perfect product amazing gain combined with LGD-4033! 10 pounds in only 3 weeks

  36. Anonymous

    Very fast shipping!

  37. Patrick Giroux

    Starting taking them April 40th hoping for good results

  38. Anonymous

  39. Kevin Ringuette

    Excellent service

  40. didier rouleau

  41. Anonymous

    I’ve taken mk677 for 7 months straight I stopped 6 month and noticed the difference I love this product and wish I could be sponsored for a transformation video or pics

  42. Samuel Poisson

  43. Robert S.

  44. Cristian

    Quick shipping! Very discreet. I can’t wait to use my stack. Looking forward to more business with you!

  45. Anonymous

  46. Anonymous

  47. Emmanuel

  48. David

    Very fast turnaround with my order! I’ve used this service for a few months now and have been impressed all around.

  49. Frederic Vanasse

    Great product! First time for me and certainly not the last.

  50. Anonymous

  51. Anonymous

    Customer service on point. Can’t wait to try out the product 🙂

  52. Dakota Robinson

  53. Mario Tardif

  54. Mickaël B.

  55. sonny champagne

  56. Anonymous

    Love it

  57. Stéphane Couture


  58. Justin Greene

  59. Quentin Remond

  60. Sacha

    Arrived fast and the service was 100

  61. sonny champagne

  62. Gabriel Lemire

  63. Aidan M.

  64. Pascal phaneuf

    A bit expensive but fast shiping.

  65. Chadwick B.

    Great product. Been using for 6 weeks now and seeing good results! Delivery was good this time

  66. Anonymous

    So far I can’t tell the effect but sooner maybe

  67. Jake Burton

  68. angelo delli colli

  69. #!trpst#trp-gettext data-trpgettextoriginal=4043#!trpen#Maxime Brown#!trpst#/trp-gettext#!trpen#

    Livraison rapide, très satisfait des produits!

  70. Terry M.

    Helpful and very fast delivery

  71. Anonymous

    Seems like a very good product so far after 1 week.

  72. Gaetan Dion

  73. Joey

    Service très rapide

  74. Aidan

    After only 1 month i can see a great difference in strength. Shipping is also very fast. Would recommande!

  75. Richard M.

    see other comments

  76. Michael Poulin

  77. Anonymous

    Great as always

  78. Keven

    Best sarms on the maket best shipping really profesional people here! Thanks

  79. Anonymous

    Fast and as expected. Well done!

  80. Lorne Adamarczuk

    Came before the expected date, this product works extremely well. The Sarms does not taste that bad and is easy on my system. I have ordered before & will order again… I give 10/10 for service , quality & value… keep up the good work Sarms USA!!!

  81. Jimmy Labbé

  82. Bruno ST-Laurent

  83. reuben M.


  84. Kris M.

    Excellent response from the supplier. Shipped in timely manner and well packed. 4 weeks in and there is an obvious change to body physique. 100% legitimate product.

  85. Ricardo

  86. Frederic Duguay

  87. Bruno ST-Laurent

    Perfect combinaison

  88. Yvon Jutras

    Very good!

  89. Jay P.

    Legit product

  90. Pascal Labrie

  91. Anonymous

    Very good products

  92. Ben

    Great stuff

  93. Matt D.

    Fast shipping just started them today so we will see by the end how well they work

  94. Corey T.

    I wasn’t positive on what stack I should order so I emailed the company and got some advice. They replied right away and let me know their recommendations. I put my first order in the next day and 7 days later it arrived. I’m very happy with this company. If all goes good I’ll be ordering from them again.

  95. Hugo

    The payment is troublesome. Otherwise, I’m satisfied.

  96. Anonymous


  98. Dave F.

    Fourth order, always satisfied!!

  99. Carter West

  100. Noah B.

  101. Anonymous

  102. Kyle

    I’m just into my 3rd week on this stack and so far so good. Theres definitely been some muscle hardening effects, better pumps in the gym and the ability to push a little harder for a little longer. I haven’t noticed any significant strength gains yet but in my experience those come around the 1 month mark. I’ve only rated 4 stars because I don’t care for the “lemon chunks” that are in the compounds. The flavour is alright though.

  103. Anonymous

    Received my order quickly

  104. Anonymous

    it only takes a day that I take the rad 140 and the mk677. For the moment I see an excellent improvement of the quality of my sleep. contractions at the gym are also very good. I intend to continue at least 10 weeks later I will be able to give more follow-up in my cycle.

  105. Sitender D.

    I ordered it first time from SarmUSA. The team reaponded me very quickly on my query. Also, within 5 days i received the product at my door.

  106. Shelby L.

  107. Boichuk l.

  108. Matthieu B.


  109. Darren

  110. Anonymous

    Legit will buy again for sure

  111. Gilles

    Totally satisfied with these products. Good service and fast delivery.
    Make sure you order from Sarm USA and not Canada Sarms, they are not the same company.

  112. Brandon M.

    This is my second order now and I love the product, really good gains and energy levels at 1 month. Can’t wait to finish my second month!

  113. Samuel Levasseur

  114. Anonymous

    Livraison rapide!! Déjà senti un changement même après seulement une semaine.

  115. Daniel R.

    Just got my order….quick delivery….already had my first dose of mk677

  116. Anonymous

    Shit works like magic

  117. Kyle S.

  118. Antonin Jutras

    I dont receive the creatine and the amino build? When you think i will receive it? I pay for express

  119. Alexandre

    Bough a couple of times, I
    Still satisfied:)

  120. Anonymous

  121. Anonymous

  122. Anonymous

    Good product, quick shipping!

  123. Laurent t.

    I received my package 4 days after purchasing, i think this is realy good delivery time, USPS put my Package in the wrong box but thats a diffrent story… product were we sealed and protected, i cant tell much about the result its only my 4th day of my first cycle, product dosent taste to bad, im trying to go from 160lbs to 170lbs, if i see good result after one cycle i will probably order again, but maybe not from this company i found some cheaper srams on other website, i will order again if i can find a discount / coupon, but overall good delivry/product!

  124. Anonymous

    Rad 140 ran out 5 days before Mk 677 no real effects felt after 3 weeks now and Mk 677 is done as well now! I expected a 30 day supply here! Taking slightly less than expected dosing as well! What’s wrong here?

  125. Anonymous

    J’ai achetée le stack combo,sa fais 3 jours j’ai commencé,le feeling est super,très énergique performe super bien au gym sans fatigue, j’adore ce produit seul inconvénients j’ai de la.misere a dormir mes nuits me réveille souvent pas fatiguer mes overall je recommence grandement ce produit ses super ?????

  126. Konrad M.

    Great service.

  127. Jordan F.

    Great product, great quality. Fast shipping

  128. Philippe

    So far so good…
    Im beginner to samrs.
    Keep it slow and steady
    Looking To buy PCT around summer times and switch on MK in the same période… do you recommand ? good idea or not?

    Tanks y’all !

  129. Anonymous

    Super fast shipping good quality product. Mk677 doesn’t mix super well however.

  130. Tom Reilly

    I just got them, so how would I know?

  131. Philip Whitehead

  132. Anonymous

  133. Martin Poulin

  134. clermont chouinard

    i dint receive my order

  135. J S.

    I can’t comment, they haven’t arrived yet

  136. Grrrr Michael

  137. Sebastien Beauparlant

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