YK-11 Pros and Cons

YK-11 is possibly the most powerful Selective Androgen Receptor Modulator (SARM) currently on the market, and this comes with pros and cons. Being the most powerful SARM, has great advantages when it comes to physique and performance enhancement. Nonetheless, it also comes with negative aspects because too much power can come with nastier side effects.

We’re here to check the YK-11 pros and cons, so if you want to start using this compound, especially for the first time, you better check this article.

What is YK-11?



YK-11 is a powerful Selective Androgen Receptor Modulator (SARM) that is similar to other popular SARMs such as MK-2866 (Ostarine), RAD-140 (Testolone), and LGD-4033 (Ligandrol). Nevertheless, it is still somewhat different from them. For example, it is the only SARM with a steroidal molecular structure, and it is the only SARM that acts as a myostatin inhibitor.

Because of its molecular structure, many still wonder if YK-11 is actually a SARM or Steroid. The answer is – it is a SARM. YK11 binds to androgen receptors in a tissue selective manner, which is kind of the base definition of a SARM!

Yet, it works somewhat differently from SARMs because it has the ability to increase follistatin. This is a protein in the human body that helps keep myostatin at bay. Myostatin is popular for limiting muscle growth. Since YK-11 increases follistatin and thus inhibits myostatin, it greatly increases the potential for muscle mass growth.

It binds to the androgen receptors in skeletal muscles with very strong anabolic properties, comparable to that of androgenic and anabolic steroids. That’s why a lot of people suggest that this compound has a potency similar to steroids. When it comes to increasing muscle mass and strength levels.

Of course, that’s a great advantage of YK-11. The disadvantage is that, as we know, steroids have side effects. Being extremely powerful, YK 11 may cause side effects too which can be pretty harsh. At least, harsher than other SARMs that are milder.

Pros and Cons Of YK-11

There are no studies of YK-11 and that’s a con. However, anecdotal evidence and user reports suggest that YK-11 is highly effective for muscle growth, and that’s a pro. Even studies on mice suggest that YK 11 is highly effective. That’s because its myostatin inhibiting properties allow mice to grow twice the amount of muscle mass compared to other mice.

YK-11 Pros

YK11 benefits and results suggest that this SARM is highly effective. The most prominent benefits include:

  • Increase in muscle mass
  • Improves strength levels
  • Supports fat loss

These YK11 benefits seem to be backed up by studies on mice and anecdotal evidence and user reports. While there may be other YK-11 pros, we are going to talk about the most popular and sought-after benefits.

One of the most obvious results of YK11 is without a doubt the rapid muscle growth. YK-11 SARM is able to dramatically improve muscle growth and produce new muscle cells. It does so due to its huge potency and ability to naturally increase follistatin cells. This will suppress myostatin – the protein that inhibits muscle growth. User reports suggest that the increase of 4-8 kg (9-18 lbs) of lean muscle mass from a single 8-week YK-11 cycle is very possible.

Alongside great muscle growth, you can expect a great strength increase. YK11 pumps your muscles, making them appear bigger. But it also makes them stronger. Even without muscle growth, people report strength increases, which seems to continue to increase throughout the entire cycle. Breaking personal records in the gym with YK-11 is very possible. Strength increase is almost an immediate effect.

Moreover, YK 11 is a SARM that also supports fat loss. Because of the way it works, users can expect a much higher fat free mass as it helps gain lean muscle tissues whilst you’re burning fat at the same time. Such a combination greatly helps users achieve their physique and performance enhancement goals.

These awesome YK-11 pros made this SARM very popular among bodybuilders.

YK-11 Cons

There are no studies on the safety of YK11 use in humans, and that’s a con itself. For this reason, when talking about YK-11 cons, we have to rely on user reports for information regarding the possible YK-11 side effects.

According to the reports, most people experience little to no side effects. However, there are still people reporting quite a lot of unwanted side effects, some of which can be pretty bad. Based on this we can say that the side effects vary from person to person. It also seems that the YK 11 side effects will affect each person in a dose dependent manner.

While you may not experience any side effects, others can experience one or multiple side effects. Also, remember this is a very powerful SARM, you do not need large doses in order to make it effective. Larger doses of YK-11 SARM may make it more effective, but it may also increase the side effects.

The potential YK11 side effects include:

  • Testosterone suppression
  • Mild liver toxicity
  • Joint and tendon pains
  • Possibly androgen-related issues

YK-11 is not liver toxic, but some suggest that their liver enzymes still increase while using this SARM. Considering there are no studies done, we can’t say for sure. Even if it’s liver toxic, most suggest that it is only mildly toxic because an 8-week cycle in moderate doses won’t really make a huge change. It’s mostly something to consider for people who already suffer from liver issues.

Additionally, joint and tendon pains seem to be reported every once in a while. This is not a very common side effect, but it may be associated with the use of YK11. However, it may not be a direct YK-11 side effect, but something indirect. What I’m trying to say is that people tend to rapidly pack on strength, meaning they are involved in heavier weights than what their bodies (joints and tendons) are used to. This leads to such pain.

Moreover, androgenic related issues seem to occur too. Although they are mild, some people report an increase in aggression, acne, and/or hair loss. These issues are usually non-existent to very mild in most cases, but that’s still something to consider.

The good news is that all of these YK-11 side effects seem to be mild in most cases and even if you experience any of them, they all reverse back as soon as you stop the cycle.

Lastly – suppression of natural testosterone production. That’s a side effect that all SARMs come with and YK 11 is not an exception. In fact, YK11 is more suppressive than other SARMs because it is more powerful. User reports and anecdotal evidence suggest that too. The use of a PCT (Post Cycle Therapy) after a YK11 cycle is very important.


As you can see, YK-11 comes with various pros and cons. YK11 is a powerful SARM that can provide a lot of benefits, but you need to make sure you use it right in order to reap the most pros and stay away from the most cons.

  • Moreover, you also need to ensure you buy quality SARMs only. Unfortunately, bunk products will lead to fewer benefits and results. Worse, they can cause even more side effects. That’s why you need to buy SARMs online for sale from reputable SARM sources only. SARMS.to is here to help you with that.

Not only do we provide real and highest quality SARMs such as YK11 for sale, but we also make sure you can save money by purchasing them as we provide the best prices for them! Moreover, we can help you learn how to cycle each SARM in order to ensure you get the best pros and cons ratio out of each and every cycle. Lastly, you can enjoy various other advantages when doing business with us, such as occasional discounts, fast and reliable shipping, convenient payment methods, friendly customer support, and numerous others!


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