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  • Elevate your gains past your genetic predisposition
  • Rapid size and strength gains  
  • Excellent fat burning effects 
  • Prevents muscles loss, especially while on reduced caloric diets
  • Similar in chemical structure to steroids
  • Athletes are experimenting with YK11 as a possible replacement for steroids

So, you've heard about this powerful SARM, and now you want answers. No worries, you have landed in the right place. Let's go over what YK11 results you can expect from your research with some interesting facts about science and clinical trials further down.


YK11 is an exciting new Selective Androgen Receptor Modulator that has been studied for its ability to inhibit a protein in our bodies called myostatin that is responsible for reducing muscle cell development. Essentially this means YK11 can help you grow larger muscles faster than you would typically have been able to. Researchers in the community have also observed increased muscle strength, improved endurance, and enhanced libido.

Bodybuilders and fitness competitors have been experimenting with YK11 for its purported ability to enhance muscle development similar to steroids but without the harsh side effects.


It is a compound that has been shown in studies to inhibit myostatin, which can allow for muscles to grow larger than they usually would. Unmatched in strength and potency, this product has been gaining traction in the research community as one of the best new performance-enhancing compounds available.

With a chemical structure comparable to anabolic-androgenic steroids, YK11 is being touted as a potentially safer alternative to harsh oral steroids such as Anadrol. Its ability to selectively bind to androgen receptors means that your hair and prostate will not have to suffer the way they do with steroids. The selective nature of this compound can mitigate YK11 dangers.

In a 2013 study, scientists found that they could increase the production of follistatin when muscle cells were stimulated by YK11, which could inhibit myostatin. Since myostatin limits the size of our muscles, blocking it would allow for increased muscle growth. In other words, by inhibiting Myostatin, YK 11 may help users exceed their natural-born ability to gain quality muscle.

Could YK11 help level the playing field between the genetically gifted and the rest of us? These questions and more will be answered in future updates on our YK11 review.


As with most SARMs, dosages should be based on the researcher's experience with similar products. While we cannot advise dosages, anecdotal evidence points to a daily dose of 5 mg to 15 mg.

Due to a half-life of between 9 hours and 12 hours, doses can be split into two separate times per day.

Our products come in convenient capsule form.


PCT should be considered for extended cycles or dosages above 5 mg per day. Get informed on our PCT page.

YK11 dangers can be alleviated by starting your experiment with smaller doses. Remember that the results listed are based on anecdotal evidence from other community researchers and their YK11 experience.

Now that we have answered some common questions and you have a greater insight into YK11 you can begin your research in the quest to find the ultimate SARM for you.

Don’t forget to join our SARMs community by signing up on our home page.

If you’re looking for something different, something with an edge, you have landed on the right page.

We are part of the SARMs community. A community of hundreds of thousands of athletes, bodybuilders, and fitness enthusiasts that have been experimenting with numerous cutting-edge research chemicals for over a decade.

YK11 capsules for sale at 99 Purity.

For North America's best-priced SARMs and Nootropics join the 99 Purity Community and benefit from our superior quality and experience in the industry.

Chemical Name: ethyl 2-{5-methoxy-5,15′-dimethyl-5′-oxospiro[1,4-dioxolane-2,14′-tetracyclo[²,⁷.0¹¹,¹⁵]heptadecan]-6′-en-3-ylidene}acetate
CAS Number: 1370003-76-1
Chemical Formula: C25H34O6
Molar Mass: 430.534 g/mol

    • Weight
      29 g
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    Score: 5.00 (votes: 2)
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    Score: 5.00 (votes: 2)
    No reviews.
    • $39.99
    • 9   – Reward points
    Score: 5.00 (votes: 2)
    No reviews.
    • $49.99
    • 12   – Reward points