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YK-11 (Myostatin)
Myostatin Inhibitor
£55.00
What’s Included
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60 capsules per bottle -
10mg pure YK-11 per capsule
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2-month supply (1 cap daily)
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Third-party lab certificate included
Lab Tested
Third-party verified
Fast Shipping
3-5 business days
24/7 Support
Expert guidance
Product Description
YK-11 MYOSTATIN is a unique compound that acts as both a SARM and a myostatin inhibitor, providing unparalleled muscle-building potential. By blocking myostatin, the protein that limits muscle growth, YK-11 enables extraordinary muscle development that surpasses natural genetic limits.
Our premium YK-11 MYOSTATIN is manufactured to pharmaceutical standards and third-party tested for purity. Each capsule contains 10mg of pure YK-11, delivering powerful muscle-building effects for serious athletes.
23 reviews for YK-11 (Myostatin)
What are the Key Benefits of YK-11 (Myostatin)?
Massive muscle growth
Myostatin inhibition
Strength enhancement
Rapid results
Improved muscle density
Enhanced recovery
Ingredients & Dosage
Active Ingredients
YK-11 (Myostine)
10mgMyostatin inhibitor and SARM
Black Pepper Fruit Extract (Piper nigrum)
5mgEnhances absorption and bioavailability
Purity & Quality
Third-party lab tested 
99.6%+ purity guaranteed 
24-month shelf life How Does Ibutamoren YK-11 (Myostatin)?
YK-11 MYOSTATIN works through a dual mechanism: it acts as a selective androgen receptor modulator while simultaneously inhibiting myostatin, a protein that naturally limits muscle growth. This unique action allows for muscle development beyond normal genetic limitations.
By blocking myostatin, YK-11 removes the natural brakes on muscle growth, allowing for rapid and substantial muscle gains. The compound also increases follistatin levels, further supporting muscle development and strength gains.
With a half-life of 6-10 hours, YK-11 provides rapid and dramatic results that are often visible within the first week of use.
Key Actions
How to Use YK-11 (Myostatin)?
Dosage
10mg once daily
Timing
Take before bedtime for optimal results
Cycle Length
6-8 weeks followed by 4-week break
Important
Dietary supplement use only
Take with meals. Due to potency, limit cycles to 8 weeks maximum.
Looking for something else?
Is your primary goal muscle growth? Explore other options and see Ibutamoren (MK-677) available at CORE SARMS.
Frequently Asked Questions
YK-11 is a unique compound that acts as both a SARM and myostatin inhibitor, providing exceptional muscle building potential.
YK-11 uniquely inhibits myostatin, the protein that limits muscle growth, allowing for gains beyond normal genetic limits.
YK-11 is very potent and recommended for experienced users who have completed cycles with milder SARMs first.
Reported effects include mild fatigue, joint stiffness, and temporary hormonal suppression. Individual responses vary, and not all users experience side effects.
Users typically gain 10-15 pounds of muscle in 6-8 weeks, with significant strength increases throughout the cycle.
Yes, YK-11 is known as a myostatin inhibitor, meaning it may help reduce the activity of myostatin, a protein that limits muscle growth. By potentially blocking myostatin, YK-11 may promote greater muscle development and strength gains compared to traditional SARMs.
YK-11 may support rapid muscle growth, enhanced strength, and improved recovery. It combines the effects of a SARM and myostatin inhibitor, helping users gain dense, lean muscle tissue while maintaining definition. Some users also notice better muscle hardness and endurance over time.
YK-11 binds selectively to androgen receptors in muscle and bone tissue while simultaneously reducing myostatin activity. This dual action helps stimulate muscle protein synthesis, supporting increased strength, growth, and overall athletic performance.
YK-11 is typically taken once daily, with cycle lengths ranging from 6 to 8 weeks. It can be used alone or stacked with other SARMs like RAD-140 or LGD-4033 for enhanced results, but always follow the manufacturer’s dosage guidelines.
Customer Reviews
Exactly what I wanted
A solid 8.9/10 for me
YK-11. One heck of a compound if you ask me. Ran it at 5mg so it would suppress me, but still at this dose it gave me a ton of strength pretty quickly too. My muscles felt and looked a lot denser thru out the whole cycle. At this dose I would say that its a perfect fit for someone who is looking for strength boost at its finest.
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YK-11 (Myostatin)
£55.00
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Peter Wagner –
That it
Stefan Keller –
Nice
Andreas Müller –
Customer support .. just great!
Tomas Andersson –
Good price and work
Lukas Schmidt –
Bussin
Daniel Novak –
Somehow I only gained muscle with no fat, and currently I’m looking so damm DRY
Michael Steiner –
Usually, supplements for me take time before they work, but with YK I saw the difference after one week. I don’t know how.
Erik Johansson –
100% stronger than RAD-140. Or do others have a different experience? Plz let me know:0
Paul Evans –
YK-11. One heck of a compound if you ask me. Ran it at 5mg so it would suppress me, but still at this dose it gave me a ton of strength pretty quickly too. My muscles felt and looked a lot denser thru out the whole cycle. At this dose I would say that its a perfect fit for someone who is looking for strength boost at its finest.
Robinson Fredric –
No joking around with this one
Orson Manoug –
This is really strong but in a good way, I enjoyed it
Elias Ramsey –
I like this better than RAD-140
Corbin Xander –
No regrets
Franklyn Brice –
Way too much hate on this, I really liked it
Oral River –
Yeah, I’m into this
Vinny Duff –
This is good
Indigo Skenandoa –
Ended up liking this way more than expected tbh
Curtis Kenrick –
Hard to complain about something that good
Lyndon Alonzo –
Reordering it right now
Brent Peregrine –
This is a very strong compound.. but in a good way
Linton Mervyn –
YK-11. One heck of a compound if you ask me. Ran it at 5mg so it would suppress me, but still at this dose it gave me a ton of strength pretty quickly too. My muscles felt and looked a lot denser thru out the whole cycle. At this dose I would say that its a perfect fit for someone who is looking for strength boost at its finest.
Morton Alf –
A solid 8.9/10 for me
Mason Harrell –
Exactly what I wanted