YK-11 EU

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If you’re familiar with SARMs you might think that YK11 is just another SARM that’s useful for bodybuilders. In fact, YK-11 is a little different in the way it works and when it comes to potential results (which let’s face it, is what we’re really interested in), YK-11 can be placed near or even at the top of the pile of SARMs for muscle growth.

Some even call it the most powerful SARM and while that’s impossible to prove, there’s no doubt that YK11 is very effective and therefore should be a top consideration if you’re looking to get into SARMs or looking to try a new compound.

Original price was: R650.Current price is: R585.

SKU: EU039


YK-11 is a steroidal SARM so works a little differently than many other popular SARMs. It is a partial agonist of the androgen receptor and is often described as a hybrid between a steroid and a SARM.

YK-11 is very much a research SARM and while some other compounds have moved towards human studies and trials, research on YK-11 has stalled in its infancy with no scientific validation of what it can and can’t do, and no hard evidence of potential short term side effects or long-term health impacts. This means that anecdotal evidence from users of YK-11 and their personal experiences is the main form of information about this compound.

This gives us a good idea of what YK11 is capable of, however it should always be kept in mind that you could personally experience effects – either good or bad – that have not been shared by other users and this is one of the risks that comes with using a research compound like YK-11.

What we do know is that YK11 is great for making mass gains, can assist with fat loss, and helps shape the physique with no fluid retention. For these reasons it appeals to both bulking and cutting goals, while also being a compound that females can use.

Additional information

Chemical Composition




Pack Size

56 Tabs


EU Pharma

Dosage Instructions

0.5mg – 10mg Per Day

YK11 is fully capable of delivering very impressive results at low doses so if you’re just starting out, there’s no need to worry that starting low won’t give you what you want: because even just 5mg per day is going to allow you some nice muscle gains even with a short cycle of just 4 weeks, although ideally you will extend this to 8 weeks.

Once you feel confident in using this SARM and can control any side effects that develop, a dose of 10mg is viable, while up to 15mg can be considered for more advanced users. No one should be going above 15mg because of the heightened risk of side effects. Most male users will find that 10mg daily is more than sufficient.

Women can use YK11 at low doses starting at just 0.5mg daily with a maximum of 2mg.

YK-11 has a short half-life (although even its precise half-life is yet to be confirmed through studies) so it’s advisable to split your dose into a twice daily administration so you’re able to maintain the most optimal level of the compound in the bloodstream.

YK11 has good bioavailability when taken orally and this is how most people will choose to take it, but some will select to inject the compound however this is considered an advanced strategy and not recommended for those who have no experience with injecting.



YK11 Only cycle

This is a SARM that is more than powerful enough to use on its own with excellent results, and that is what many people do. The shortest and sharpest introduction cycle is to take just 5mg daily over a 4-to-6-week cycle.


New users to YK11 can use this short cycle to evaluate results, and you will see results within that short time frame while minimizing testosterone suppression. Once you feel more confident you can consider increasing the dosage to 10mg or even 15mg daily for an 8-week cycle. Note that a dose any higher than 15mg is not recommended.



YK11 bulking cycle

YK11 will bulk you up seriously when used on its own, but if you want to take things to another level there are some other SARMs and similar compounds you can stack it with. One of the common ones to use with YK-11 is LGD-4033 (Ligandrol). Super advanced users might even add a third compound, with Testolone (RAD-140) and Ostarine (MK-2866) being popular. But possibly the most powerful bulking and strength combo is that of YK11 stacked with RAD140

This emphasis on boosting strength is important because this extra strength is going to power your workouts and bring on those bulking results much faster. Gains will also be nice and dry without issues of water retention. Dosages in this 8-week cycle can be set at 10mg daily for YK11 and 15mg daily of RAD-140. These doses will give you noticeable strength benefits within just the first week.


YK11 cutting cycle

S4 (Andarine) and Cardarine are two compounds that will provide an exceptional cutting cycle when stacked with YK11.

If you only choose one compound to stack with YK-11, which is the best strategy to start with, then consider Cardarine. While it’s not strictly a SARM, it is very effective for stimulating fat burning and is a popular cutting compound on its own.


At low doses Cardarine is effective and boosting endurance which is going to propel your workouts for quicker fat burning. 10mg of Cardarine daily combined with just 5mg daily of YK-11 will promote muscle retention, some possible muscle gains and importantly, fat loss and physique hardening without water retention or gyno.



Do you need to do post cycle therapy after using YK11? Yes, it’s always ideal to have your PCT ready to go. You can expect some suppression of testosterone with this SARM, ranging from mild to moderate depending on your dose.


If you’ve used steroids before then you can expect YK-11 to not cause a testosterone crash or complete suppression, but you should not go into using YK11 thinking it’ll have zero effect on testosterone; virtually all SARMs suppress to some extent.

If you’re stacking YK11 with one or more other compounds you can expect more suppression; but again, this depends on doses and cycle lengths.

Standard PCT protocols can be followed with the length of PCT unlikely to require being if you’d complete after steroids. A minimum of 4 weeks is still recommended. The most used PCT drugs will be highly effective after a YK11 cycle, with those being Clomid and Nolvadex. It’s highly unlikely you would need to take PCT further by using HCG which is common after steroids.

Signs of lowered testosterone include lack of energy, loss of muscle, fat gain, low libido, and general feelings of being unwell. It’s best not to wait for these signs to occur and instead to be proactive in getting PCT going after your YK-11 cycle.

Effect on Cycle

Effects & Benefits on Cycle:

Muscle gains, fat loss and improved bone health are the main desirable benefits of SARMs for performance enhancing use.

There’s lots of benefits for bodybuilders with YK-11 and in all the critical areas that you want to focus on. Here are the main benefits and effects of YK11:

  • Gain Lean Muscle – YK11 will stimulate the production of muscle cells and lead to muscle gains that are good as any you’ll get with a SARM; and even potentially as much as you can get with some steroids if you put the physical work in. Consider that many have gained at least 10lbs of quality muscle on an 8-week cycle of YK-11 and you begin to see the power of this SARM.
  • Increase Bone Strength – We know that SARMs bind to androgen receptors in the bones, and this can stimulate an improvement in bone mineral density which ultimately improves the strength and health of the bones. Strong and healthy bones provide the structure to allow you to lift heavier and to support your increased muscle growth.
  • Fat Loss – There are other SARMs with more fat loss ability than YK11 but there’s no doubt this one will also boost fat burning, particularly as you’re gaining lean muscle, so your metabolism is naturally going to become more efficient. More muscle equals faster fat burning, and it also means the metabolism keeps working to burn off fat even while you’re resting. Even if YK11 does not directly contribute to fat burning through its functionality, if you’re consuming a calorie deficit diet while cutting, and you’re working out hard and gaining muscle then you are undoubtedly going to lose a good amount of fat while using this SARM.

YK-11 is thought to promote muscle growth by increasing the growth of a critical muscle building protein called follistatin, while it has also shown to stimulate the the proteins that build bones, which is one of the properties that we see with many SARMs and why they are being seriously researched to treat osteoporosis.

These effects can lead to an increase in bone density and lean muscle gains which is highly desirable for the bodybuilder and elite athlete. But so far only cellular and some animal studies have been done on YK-11 and its benefit for humans at higher doses is anecdotal based on personal experiences.

It’s not uncommon to hear about gains of up to 15 pounds within one single cycle of YK-11, while fat reduction during this time can also be significant. This can make YK-11 useful not only for bulking up, but for cutting phases as well. If the diet supports it, YK-11 can help not only retain muscle tissue during cutting but stimulate its growth too.

Side Effects

Many like to think of SARMs as being side effect free, but this is rarely the case. YK11 certainly comes with less side effects compared to anabolic steroids but there are still going to be things to watch out for.

Most important is the fact that this SARM has no research or studies so far to confirm adverse effects so what we do know comes from those who have been using YK-11 and have recorded and shared their own experiences.

This means there could be negative impacts that you personally experience that are still not widely known; for this reason, it’s always wise to begin YK11 at low doses until you know how it affects you as an individual.

Here are the known possible side effects that come with using YK11:


This could be the most talked about side effect of this SARM and it brings to mind the issue of “roid rage” which steroids are notorious for (although not always accurately). A potential increase in aggressive tendencies can come about because of alterations to the balance of hormones which can impact on mood.


Some users note that this is more noticeable at the start of the cycle when things start kicking in. Those who are already prone to bad moods or being quick to anger are going to be at higher risk of having that personality trait worsened when using YK11, especially at higher doses.

To minimize this potentially serious side effect which can have repercussions not only on yourself, but other people around you, lower your YK-11 dosage to a point where aggression management is made possible. For many YK11 users, this can become the most concerning side effect rather than any physical effects.


The next most common side effect being reported relates to development of pain in the joints. It’s not known exactly why this happens but possibly relates to YK11’s effect on the regulation of cortisol which is a function of DHT itself and is a reason why DHT derived steroids like Winstrol are also known for causing joint pain.


The type of pain can vary. Some users have noted a sudden onset of sharp pain in places like the knees while others report ongoing low intensity pain in various joints. Another related issue is of tendon pain that some users have made note of. Naturally these problems can make it harder to lift weights and to recover quickly. Again, play with your doses to get control of this side effect if you notice joint or tendon pain developing.

Hair Loss and Acne

There can be some mild androgenic related effects in some users of YK11 and one of those is hair loss; a side effect that will be familiar to users of steroids. Acne is another androgenic effect that some people might experience, but this is usually mild compared to the severe acne that can sometimes occur with steroids.


But just like with steroids, these impacts will mostly only affect people who are genetically predisposed to either baldness or acne, and most guys aren’t going to see these issues popping up unless you’re using very high doses of YK11 (which is not recommended for numerous reasons).

Testosterone Suppression

YK11 is likely to cause at least mild suppression of normal testosterone function. Higher doses and longer cycles put you at higher risk of higher suppression. Stacking YK11 with one or more other SARMs or other compounds is almost certain to increase suppression enough that it will become noticeable, particularly with issues like fatigue and potentially losing some muscle gains and gaining fat after your cycle.

This is a clear sign of low testosterone so to avoid these negative impacts it’s wise to have PCT ready to go following your YK11 cycle; both from a health perspective to and retain the gains you’ve worked so hard for.

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