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The Monster Stack

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(51 customer reviews)

One of the Most Powerful Muscle Builders

  • Myostatin inhibitor
  • Increase in muscular size and strength
  • Muscle hardening
  • Prevents fat gains
  • Enhances muscle growth
  • Helps in fighting arthritis
  • Prevents muscles loss
  • Allow you to far surpass your body’s genetics in regards to the accrual of muscle mass


YK-11 Is One of the Most Powerful Muscle Builders

YK-11 acts as a potent Myostatin inhibitor in the body, allowing for muscular development far exceeding one’s genetic potential. Myostatin acts as a regulator of skeletal muscle mass, limiting how much muscle the body can grow. He attaches itself to the androgen receptor, and induces the muscle cells to produce more Follistatin, consequently inhibiting Myostatin in the body, which then results in more overall muscle growth YK-11 attaches itself to an androgen receptor. This prompts muscle cells to produce more anabolic factors that in turn leads to increased muscle growth. In a past study, the effect of this compound on muscle cells was proven to be much higher. In this study, it was found that the muscle cells produced more anabolic compounds when exposed to 500 nmol of this compound than when exposed to testosterone.

YK-11 just like any other SARM is designed to help with muscle growth. It has been proven that the compound promotes muscle growth, muscle retention, and the growth of new muscle cells. Its side effects are minimal and cannot be compared to the side effects of steroids available in the market. This possibly explains why it is receiving a lot of attention as many are looking for a solution that is safe and works to enhance muscle growth.

This compound works great for those looking to build muscle mass. The compound is also ideal for people who want to maintain the amount and quality of their muscles and keep fat cells at bay.

The chemical structure of YK-11 is quite similar to that of steroids. It is derived from testosterone as a synthetic steroid. This does NOT mean that the compound is a steroid. Actually, it is classified as a SARM or Selective Androgen Receptor Modulator in FULL. Given that this is an androgen receptor, it delivers the same results as other androgens receptors.

Unlike other SARMs, this compound comes with a steroid backbone. This possibly explains why it is more effective and is classified among the most potent SARMs. It, however, comes without the adverse side effects associated with steroids.

Sarm Usa Yk 11 Structureproduct

Ingredients: (17-alpha,20E) 17,20-[(1-methoxyethylidene)bis(oxy)] 3-oxo-19-norpregna-4,20-diene 21-carboxylic acid methyl ester,organic MCT oil, natural lemon flavour with stevia.

51 reviews for YK-11

  1. Marc-André Dumaine

  2. Joseph


  3. Joseph


  4. Richard

  5. DJ Dallaire

    Would like a better price moving forward.

  6. Matthew Marple

  7. Richard

    Excellent product, effective and good communication with sarmusa

  8. Ari

  9. Kelly

    Just got this a few days ago

  10. Anonymous

  11. Scott P.

    Great product

  12. Anonymous

  13. Emmanuel

  14. Anonymous

    great service and product

  15. Anonymous

    great service and product

  16. Mickaël B.

    Good product

  17. Anonymous

  18. Josh

  19. Ron Noble

  20. Brandt K.

  21. Michael

    Cant say for sure. Havent tried it yet but it came quickly. Excellent bottling. Hope its as good as it looks

  22. sonny champagne

  23. Francis Boilard

  24. Anonymous

    Je nai pas vu encore de changement mais cela fait juste 5 jour de prise

  25. Anonymous

    Je nai pas vu encore de changement mais cela fait juste 5 jour de prise

  26. Jessica

    Excellent customer service. Smooth transaction and speedy delivery. Very satisfied!

  27. Jordan Simon

  28. Anonymous

    I pay 79.99 cad, amazing product

  29. Anonymous

    I pay 79.99 cad, amazing product

  30. Paul Saccà

    Excellent product. Good price. Fast shipping!

  31. Michael Parker

    A great mix with the Alpha stack

  32. Trent N.

  33. Michael

    Excellent as usual.

  34. Michael

    Excellent as usual.

  35. Jimmy Labbé

  36. Marc-André Pineault

  37. Andrew

    SarmsUSA is bomb.

  38. Jordan Hale

  39. Trevor Holloway

    Great service fast shipping

  40. Trevor Holloway

    Great service fast shipping

  41. Yvon Jutras

    Very good!

  42. Angela Aslin

  43. Richard

    Excellent product from SarmUSA

  44. Anonymous

    I’ve only just received it but so far, so good.

  45. Anonymous

  46. Kyle

    So far so good.

  47. Josh

    Well-wrapped & on time!

  48. Josh

    Well-wrapped & on time!

  49. Gilles Stamour

  50. Anonymous

    I haven’t yet received my product and I paid an extra premium for express shipping

  51. Anonymous

    I haven’t yet received my product and I paid an extra premium for express shipping

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