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Proof that SARM YK11 Will Make Your Tendons Brittle

Taking care of your body is a point of pride. Your body is your temple, it’s important to eat right, exercise, and do everything else that you need to do in order to keep it running it like a well-oiled machine.
For some of us, this desire is stronger. It’s more than being healthy, we want to look good too. After all, nothing’s sexier than someone with a toned, ripped body.

Although this is an admirable goal, sometimes our best efforts don’t get us the results that we want. For those of us dealing with this frustration, workout supplements are a great choice.

The problem is, with so many types of supplements on the market (protein powder, prohormones, SARMS, steroids, etc.), it can be hard to figure out which one is best for you. Further, some of them (like steroids and prohormones) are known to have some unpleasant side effects.

Another popular option, the SARM commonly known as YK11, is said to make the tendons brittle, among other negative effects.

To get to the bottom of the YK11 SARM mystery once and for all, we aim to show you proof that YK11 will make your bones brittle.

What are SARMs?

SARM stands for selective androgen receptor modulators. SARMs are compounds that improve the way that androgen receptors react to hormones. In layman’s terms, they help you bulk up and get cut. They increase the speed of muscle growth as well as the rate that the body burns fat, and they do all of this without disrupting the endocrine system, unlike steroids.

Steroids mimic the hormones in the body. So, when they are ingested, the body and its receptors are overwhelmed with compounds. This hormonal overload is one of the reasons their side effects are so unpleasant, the body can’t handle all that testosterone.

Although SARMs work like steroids, the side effects aren’t the same. That’s why they’re considered, by some, to be the holy grail of fitness products. Furthermore, there are a variety of different SARMs on the market, each with its own use. For instance, Cardarine is used by those looking to increase definition and YK11 is used by those looking to regulate muscle growth.

What is YK11?

YK11 is considered to be a myostatin inhibitor. It attaches to the androgen receptors, which helps it regulate muscle growth. It also increases the body’s production of follistatin, a compound that’s vital for muscle cell growth.

What is Myostatin? To gain a deeper understanding of YK11 SARM, it’s important to delve deeper into one of its major ingredients, myostatin. Myostatin is a protein that the muscle cells produce to slow down their growth processes.

After learning about this protein, many athletes search for ways to eliminate myostatin’s inhibitive properties. This demand is the reason that supplements like YK11 were created.

Proof that it Makes Tendons Brittle

At first glance, YK11 seems like every fitness aficionado’s dream. But, when you dive deeper into the story, things take a different turn. In fact, there are a number of studies that conclude that the disadvantages of SARMs far outweigh the benefits.

One such research study found that the tendons have myostatin receptors. The mice without myostatin lacked tendon elasticity. After further study, they concluded that myostatin inhibitors caused the tendons to become stiff and brittle. Because most athletes perform rapid and explosive movements, the benefits of strength and size are outweighed by the significantly increased risk of injury.

Other Disadvantages of Myostatin Inhibitors

After further digging, it was discovered that brittle tendons were not the only negative effect of myostatin inhibitors like YK11 SARM. These effects include but are not limited to:

1. The loss of stamina. One study showed that the lack of myostatin can reduce stamina drastically. Over a 4 week period, myostatin-less mice and their normal counterparts were placed on the same exercises and diet routine. Although the mice without myostatin did increase their muscle mass, their stamina was significantly lower than their normal counterparts.

2. Slow healing: One study wanted to discover if myostatin played a role in the healing process. Although the study was performed on mice, they found that the ones without myostatin healed significantly slower than their normal counterparts. This is because myostatin help healing at the skin level. If there is a lack of myostatin, new cell formation is slowed. Furthermore, the cells that are present produce smaller amounts of collagen.


When you first take a look at it, myostatin seems the be the holy grail for those interested in increased size, speed, and strength. But, new information about the role it plays in the body makes it abundantly clear that the disadvantages (brittle tendons, less endurance, and slow healing) far outweigh any benefits. This is why it’s important that you give products like YK11 SARM a second (and maybe even a third) thought.