YK-11 vs RAD 140 Which Is More Effective?

  • By: Dave Moffat
  • Date: August 11, 2023

YK-11 is a type of drug that blocks myostatin, which prevents muscle growth in your body. On the other hand, RAD 140 works by increasing testosterone and can consequently lead to an increase in size for both developed muscles as well as those still developing during adulthood; this makes it perfect if you’re looking for more mass.

There are two of the most powerful SARMs that you may be considering when bulking, YK-11 and RAD 140.

The key to consider is how each one affects your body differently; some people want more mass while others prefer leaner muscle with less fat cell in it – this will depend on what look or style they’re going for.

The market for SARMs (Selective Androgen Receptor Modulator) has been growing recently because they represent a better alternative to steroids that have potentially dangerous side effects Introducing SARM supplements like YK-11 or RAD 140. 

These aren’t just alternatives they’re better than steroids because these legal compounds produce increased size without any harmful chemicals attached (or so we’ve heard).

YK-11 vs RAD 140 Which Is More Effective

Now before getting into which one may be right for your needs as well, please note there are tons of different types but basically, they work by promoting growth hormone production which leads to muscle gain.

Some people assume that SARMs are without any side effects, but the reality could be more different. 

Even though there is currently little clinical evidence for them and anecdotal reports from actual users reveal serious concerns about potentially dangerous reactions at higher doses.

If you’re looking to maximize your testosterone levels and avoid those pesky side effects of low-T, then combining YK 11 with RAD 140 Testolone would be one of the worst things imaginable. However, both these compounds can still provide significant benefits when taken individually -so don’t fret.

Have you ever wondered which one of these is better? We’ll explore that in this article.


While YK-11 mainly works to inhibit myostatin, a protein that prevents muscle loss and enhances the growth of existing tissue; RAD 140 boosts testosterone levels in order for your body’s natural process regarding fat burning or gaining lean mass (depending on the user) to happen more efficiently.

To find out which one is better, we need to compare the two side by sides.

What Is YK-11?

 When it comes to increasing muscle mass, the power of YK-11 is unmatched. It does so by inhibiting myostatin which prevents growth in your body tissues; thus, helping you build faster.

Myostatin deficient bodybuilders have a genetic advantage when it comes to muscle building. They can build more mass much faster than those with normal levels of this protein, and they often start seeing the benefits sooner too.

There are not many clinical trials on this SARM, but there is anecdotal evidence that it works. it has been reported to be both effective and safe for increasing muscle mass over time.

This SARM has been shown to be highly suppressive, and many bodybuilders have experienced massive testosterone suppression after an YK-11 cycle. Because it has been discontinued in clinical trials, we do not have any human or animal data for this SARM.

What Is RAD 140?

RAD 40 otherwise known as Testolone is a new SARM that is great for both building muscle and enhancing strength. Another advantage of RAD 140 is that it aids in the burning of fat in your body. It’s also one of the best SARMs for cutting. 

It could especially help you cut fat with its ability to speed up the metabolism in your body while also providing other incredible benefits such as increased energy levels.

When it comes to building muscle, there’s no better way than with the RAD 140.

While it’s true that RAD 140 is suppressive, not as much so as YK-11.

The benefits and side effects of this SARM have not been studied extensively yet, but there are many stories of people who have been on a Rad 140 cycle and their experiences reflect the effects that it had on them.

abs picture muscle showing

YK-11 vs RAD 140 Benefits


The time it takes for a particular SARM or steroid to leave your body to produce the intended effects is known as half life. The half life of RAD 140 is much longer than that of YK 11.

The half lives of these two SARMs are very different. RAD 140 takes 60 hours to clear out, while YK 11 only has a 12-hour lifespan in your body.

With a half life of only 12 hours, you need to take two doses of YK 11 every day for maximum yield.

The key advantage that RAD 140 has over YK 11 in terms of its half life is the long 60 hours which means even if you miss one dose; it will still be present within your system and produce desired effects.

Let’s go through the advantages of both of these SARMs one by one so you can make an informed decision about which one is right for your needs.

Build Muscle Mass

When it comes to muscle growth, there is no other SARM that can compare with YK 11. Not only does this drug increase anabolic activity in your body but it also stops myostatin from limiting the size of our muscles something we all want.

The evidence suggests that YK 11 is more potent than RAD 140 when it comes to building muscle mass.

The powerful YK-11 gains in muscle mass have been proven by anecdotal evidence. 

However, it is possible to gain 15 pounds of lean tissue within just 8 weeks when compared with RAD 140 which could help you achieve maximum 10 lbs on your frame over similar time periods.

You can use these two powerful SARMs in a stack with other steroids for faster bulking effects. RAD 140 Stacks are great when you want to pack on some mass, cut it away later or just change your body composition.

Increased Strength

YK 11 has been proven to be stronger than its counterpart, RAD 140.

When you’re on a YK 11 cycle, it’s likely that your strength will increase more than with a RAD 140 cycle.

The effects of YK 11 are not as intense or mood altering, making it a better option for those who want less extreme changes.

Fat Burning

If you want to get more vascular, then YK 11 and Testolone are both good options. Nonetheless, RAD 140 is the best in enhancing this aspect of your bodybuilding routine because its results in an increased amount or visibility for veins on the skin which gym freaks love seeing.

Though YK 11 is effective at increasing muscle mass, it lacks the ability to burn fat. But with Testolone or RAD 140 in your body and boosting metabolism like never before you could achieve a sleek, firm look all year round. 

This powerful SARM can be used both during bulking cycles or cutting phases as well; making this an excellent choice for body re composition techniques too.

Better Motivation

The more power you have, the better your motivation will be. A person with little strength might not care about lifting heavier and harder because they feel like it’s beneath them or something along those lines but someone who is strong feels empowered by increasing his/her physical ability so he can take on life head-on without fear.

 The key difference between these two supplements is the motivator. YK 11 tends to be better as it provides a sense of urgency while Testolone RAD 140 does not have this effect on people’s motivation level.

When on this SARM, you feel like a champion at the gym and it’s hard not to drag yourself there every day.

YK-11 vs RAD 140 Possible Side Effects

Let’s take a look at some of the side effects that can happen when taking these anabolic steroids YK 11 and RAD 140.

Lower Testosterone Levels

When using anabolic steroids or SARMs, one of the side effects that you may experience is lower testosterone levels in your body.

There are many cases where bodybuilders can get away without Rad 140 PCTs, but when on a YK11 cycle you must plan your post-cycle well in advance.

The truth is, you will not be able to get your testosterone production back on track without PCT after a YK 11 cycle. You need at least four weeks of taking Nolvadex in order for testosterone levels to rise again and reach an appropriate level.

If you have been noticing that your energy levels are low, coupled with a decline in sexual appetite or libido, or depression, it indicates your testosterone is suppressed. Other side effects include mood swings, anger toward both people and animals alike as well as less motivation to train.

It’s not possible for anyone to recover from this drug naturally and even I had no choice but to use a four week PCT with Nolvadex regimen while on it.

Aggressive Behavior

The use of anabolic steroids and SARMs can lead to aggressive behavior. The example most people know about is Oscar Pistorius, who killed his girlfriend in a fit roid rage

RAD 140 has a greater impact on aggression than YK 11.

 You feel like everything is too much work when on rad 140. I would be surprised if this doesn’t make your emotions more volatile and difficult to manage, especially with all those little irritations that seem so big before they’re even dealt with.

 YK 11, on the other hand, will give you greater control over your rage. Even if you are still enraged, it will not be to the same degree as murdering or striking someone.

Toxic Liver

So, if you are looking for the safest bet when it comes to your liver, then RAD 140 would be an excellent choice.

The addition of a methylated group to YK 11 makes it hard for your liver to break down. As such, you will need some extra help from time to time during this cycle.

RAD 140 is the safest option for people who are concerned about their AST or ALT levels. However, it’s important to take these steroids with caution as anything can go wrong at any time.

Legal And Safe YK 11 and RAD 140 Alternatives

It is best not to use YK11 or RAD 140 since they are unlawful and can result in severe negative consequences. Legal SARMs are a good alternative to illegal and unsafe steroids.

The variety of SARM supplements available on the market can flood you with choices. With brands like Crazy Bulk and Brutal Force, there’s no need to worry about PCT because their products have a legal range that doesn’t include any kind of artificial ingredients. 

Crazy Bulk’s Testol 140 is the most effective option for RAD 140. It not only enhances testosterone, but it also aids in the development of large muscles and strength. It has received positive user feedback.

YK11 Bulk from Brutal Force, on the other hand, is an excellent replacement for YK11. It’s great for muscle growth and endurance improvement.



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  • Great for Muscle Gains
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Crazy Bulk and Brutal Force are two supplement companies that have been getting rave reviews from gym goers for their illegal steroid alternatives. Unlike SARMs or even prescription drugs, these supplements mimic the effects of real steroids but without any negative side effects to worry about.

You can’t go wrong with either of these supplements. One has a 60 day money back guarantee while the other offers 100 days’ worth.

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Hi, I'm Dave Moffat the founder and Chief Editor of steroidsourcetalk.com and certified International Personal Trainer and Certified Nutritionist. My passion has always been bodybuilding but with 15 years' experience in weight loss programs too, it's hard not to mention all that when you're working at your fitness level fullest (I hope). When Im not in the gym or spending time away from my family i often think about what advice would help others achieve theirs goals just like these inspired mine.