The Mass Duo

(14 customer reviews)


(1 x RAD-140 + 1 x MK-677)

Each bottle contains 30ml.

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

Testolone treatment has been clinically shown to suppress cancer cell growth by blocking the effects of estrogen on tissues. Specifically, RAD140 prevents the production of a protein called ESR1, which is implicated in the development of cancer.

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! Learn everything about RAD-140 here.

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

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 flavour 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 Ghrelin 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 increases 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).

In a study (DB-RCT) in eight food-deprived healthy volunteers, MK-677 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 MK-677 may help with these.

To know everything about MK-677 click here!

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.

Additional information

Weight 0.10 kg

14 reviews for The Mass Duo

  1. William Lafontaine

    Best duo ever

  2. PascalCC

    This stack was for my friend and so far its good results. He have gain some litle weight after just 2week and he go lot more stronger. just watch dosage with mk677 , he was getting numb hand. But problem fix with half dose.

  3. Sebastien Massicotte

    Perfect product !

  4. Marc-André.G

    Produit parfait.

  5. Lorne A

    Yes definitely my favorite 2 products … together they are a powerful combo!

  6. bobsalo196


  7. lenzap

    I find it has a bit of a bitter taste at first but the mk677 I’m more rested. The rad 140 I find I’m not as sluggish as early in the afternoon which is 9 hrs later after taken

  8. Frédéric Tanguay


  9. Leonard Zaplitney

    I found the combo great for lean gains

  10. Tomy Marchessault Gendron

    Super produit et très bon goût !

  11. Juvy

    excellent product.

  12. Juvy

    excellent product!

  13. Dany Halle

    acheté le stack de 60 jours bien hate de sentir les résultats,je suis présentement au maximume de ma puissance au naturel donc le résulta devrais etre un solid gain
    5 étoile j usqua maintenantont verra apres le cycle….

  14. Brad Brewer

    Great product! Great service!

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