YK11 Australia

YK11 is typically a synthetic steroidal SARM (Selective Androgen Receptor Modulator). It is echoed to be possibly one of the most powerful SARM on the market today as a consequence of its unique nature to function as both a SARM and a myostatin inhibitor.

Read on to learn more about it, in this ultimate SARM YK11 review.

What is SARM YK11?

YK11 Sarm

As a synthetic steroid, SARM YK11 has been created by changing directly the chemical structure of a particular hormone that naturally occurs in the body called DHT which is a more powerful form of testosterone.

Scientifically there are several theories postulated around the nature of SARM YK11.

The most popular one is that YK11 is a myostatin inhibitor. This theory became popular following a cellular study where it was discovered that YK11 had the possibility of increasing the mass of muscles simply by stimulating the growth and development of a particular myostatin inhibitor called Follistatin which is a very important muscle-building protein.

The other scientific theory postulation is that YK11 is an unusually powerful SARM. This particular theory is centred on a separate study where it was found that YK11 stimulate bone-building proteins.

However, despite the postulations surrounding YK11, the theories are not to be taken as facts as there exists no evidence that backs up the numerous claims. Just like every other SARMS, it is banned by the World Anti-Doping Agency (WADA) making the Supplement illegal for use by athletes and competing bodybuilders.

What does SARM YK11 do?

YK-11 side effects

Just like other SARMs like Ostarine, YK11 works by binding the androgen receptors together in the body which then allows for the growth of skeletal muscles.

YK11 is unique in that it is not just a SARM but also functions as a myostatin inhibitor providing an added anabolic effect. This is particularly very good for its consumers as it ensures that they will fully enjoy the gains and growth of muscles as the days go by.

Also, It can affect DHT-like pathways which are a positive result from its consumption. By simply activating protein kinase B, a signal is sent to the brain to facilitate the creation of cells that build bones and even spur the formation of greater bone growth.


  • Increased muscle size

YK11 is capable of stimulating the growth of muscles and facilitating the production of new muscle cells despite not being a traditional SARM. It leads to the production of new muscle cells by increasing the Follistatin cells naturally while suppressing myostatin which is a well-known protein that halts the growth of excessive muscles.

  • Fat reduction

SARM YK11 can lead to a very significant fat loss in a short space of time while encouraging the growth of lean muscle mass. It has been reported that numerous users benefit from 10-15lbs worth of lean muscle mass gain in just one 8 weeks YK11 cycle.

  • Healthier and stronger bones

According to studies, it has been discovered that YK11 helps to improve the strength of bones by attaching itself to the androgen receptors.

  • Increased strength

SARM YK11 is famous for its increased strength for its users. It allows the body to be able to lift more weights as more muscle fibres are stimulated.

Side effects

  • Hair loss and acne

When this Supplement is taken in high dosage the risk of hair loss increases as well as the surfacing of mild acne on the skin

  • Health issues

Just like the fears with other steroids, it may affect hair growth. Not just hair growth but also ones voice pitch and prostate health. As a result of a high presence of follistatin, the risks of prostate cancer is a major health concern.

  • Joint pains

Users of SARM YK11 have on many occasions complained of having joint pains as a result of using the Supplement.

  • Unknown long term risks

As a result of the lack of human studies, there is no guarantee that the body isn’t at risk by taking in this supplement.

  • Drop in natural testosterone production

Although the drop in testosterone production was temporal and it was easily restored by PCT, it is advised to be cautious of the intake of SARM YK11.

SARM YK11 in the Media


Unauthorized Supplements Seized (Oct 2019 newswire.ca)

YK-11 in Media

Source: newswire.ca
Date: Oct 02, 2019

Cision of Newswire in Canada reports about the seizure of various unauthorized workout Supplements amongst others by Health Canada.

Health Canada warned and advised Canadians of the health risk they are subjected to by using the products of which YK11 was listed among.


Illegal use of YK11 (Oct 2019 tapinto.net)

YK-11 in Media 2

Source: tapinto.net
Date: Oct 22, 2019

Tapinto.net reported about the unhealthy and illegal use of YK11 by high school students. It sheds light on the abuse of SARMs by these student-athletes and admonished parents to be wary of the drugs their wards use.


Warning over products (Oct 2017 straitstimes.com)

warning over bodybuilding products

Source: straitstimes.com
Date: Oct 20, 2017

In Singapore, the health authority – The Health Science Authority (HSA) issued a warning over three bodybuilding products. HSA cited that the chemicals contained in the SARMs can cause harm. The supplements include YK11, Ligandrol and Cardarine.

Research Studies

Studies on the in vivo metabolism of the SARM YK11

Scientific data on the metabolism of SARM YK11 is scarce as a result of it being an experimental drug candidate and a non-approved substance for humans.

A steroidal compound was recently detected in a seized black market product and was identified as (17α,20E)-17,20-[(1-methoxyethylidene) bis (oxy)]-3-oxo-19-norpregna-4,20-diene-21-carboxylic acid methyl ester. This compound is described to possess selective androgen receptor modulator- and myostatin inhibitor-like properties.

As a consequence of its steroid backbone and the arguably labile orthoester-derived moiety positioned at the D-ring, substantial metabolic conversion in vivo was anticipated. To unambiguously detect urinary metabolites of YK11, an elimination study with six-fold deuterated YK11 was conducted. Post-administration specimens were analyzed using hydrogen isotope ratio mass spectrometry coupled to single quadrupole mass spectrometry to identify metabolites alongside basic mass spectrometric data.

Further characterization of those metabolites relevant to sports drug testing was accomplished using gas chromatography-high resolution-high accuracy mass spectrometry. Fourteen deuterated urinary metabolites were detected comprising unconjugated, glucuronidated, and sulfoconjugated metabolites.


  • As expected, no intact YK11 was observed in the elimination study of urine samples. While the unconjugated metabolites disappeared within 24 hours post-administration, both glucuronidated and sulfated metabolites were traceable for more than 48 hours.
  • The chemical structures of the two most promising glucuronidated metabolites (5β-19-nor-pregnane-3α,17β,20-triol and 5β-19-nor-pregnane-3α,17β-diol-20-one) were verified by in-house synthesis of both metabolites and confirmed by nuclear magnetic resonance analysis.
  • To elucidate their potential in sports drug testing, both were successfully implemented into the currently applied analytical method for the detection of anabolic agents.

Source: https://pubmed.ncbi.nlm.nih.gov/30379415/

Bone Growth Encouraged

Investigation into the effects that YK-11 has on bone density has revealed that it encourages growth. Yk-11 sends signals to increase levels of activated protein kinase B in cells, resulting in increases in bone growth. Accelerations were found in the cell proliferation and mineralization.

‘YK11-treated cells increased osteoblast specific differentiation markers, such as osteoprotegerin and osteocalcin, compared to untreated cells. The phosphorylated Akt protein level was increased by YK11 treatment, suggesting that YK11 activates Akt-signaling via non-genomic signaling of AR.’

Source : https://pubmed.ncbi.nlm.nih.gov/29491216/

Anecdotal Evidence

Source: www.phcoker.com/yk-11-cycle-and-experience
Date: February 2019

“I used 5mg daily YK11 dosage during my first six weeks cycle. I used a lower dosage to observe how this compound would react with my body. Luckily, everything went well, and the results were remarkable. By the fourth week, I had already gained some muscle mass and lost some body fat as well. I was keen on my diet and preferred one with fewer calories. I was also very active and at times involved in the cardiovascular exercise. This is my new best SARM; at least I do not have to deal with those annoying side effects I dealt with before discovering this unique compound.”

Source: www.reddit.com
Date: January 2015

A user on Reddit claimed to have used YK11 orally and witnessed great progress after 8 weeks of usage, with no blood-related complications. He says to have not noticed any side effects except slight lethargy he experienced on the 8th and final week of usage. He says there was no hair shedding and scrotal sac shrinkage.

Source: https://imuscle.co.uk/product/yk11/
Date: March 2019

Users Bradley J and Jamie E were both impressed with their YK-11 purchase. Jamie said that the product was strong, showing massive results. Bradley gained 5kg in muscle mass and feels fantastic. Will combine with other sarms in the next month.

Is SARM YK11 Legal in Australia?

Legal Status

In Australia, YK11 and other SARMs are classified as Schedule 4 prescription only compounds by the TGA. What this means is that in Australia, you can only buy YK11 and other SARMs if you have a doctor’s prescription for it. However, the chances of getting a doctor’s prescription for this supplement are very slim.

It isn’t just difficult to get YK11 and other SARMs in Australia, the illegality of possessing it with no doctor’s prescription comes with a penalty which differs in each state and territory. The maximum penalty for illegal possession is 6 months of a prison sentence.

Source: https://sarmguide.com/sarms-australia/

Buy YK11 in Australia

There are numerous places where you can buy ibutamoren YK11 in Australia.

Disclaimer: This information is provided for research purposes ONLY and is not an endorsement or recommendation of any kind. We have no affiliation with any of the below options unless explicitly stated otherwise.


Bear Supplements (10mg)

Australian based company selling a modified version of YK-11 (Nano-YK-7811) that is legal to purchase.




Launch Supps (10mg)

Australian website selling SARMs & Peptides.




Iron SARMs (10mg)

Australian website selling high quality SARMs. Excellent reputation.



SARM YK11 Dosage and Uses


As a result of the lack of human trials for treatment, there is no medically established YK11 dosage.

Amongst bodybuilders, the generally accepted guideline for muscle growth and enhanced performance is a daily dosage of 10mg , especially for beginners.

However, with as little as 5mg a day (taken over 4-8 weeks), results can be positively seen via muscle gains. Taking beyond the prescribed 10-15mg may result in negative side effects experienced.

  • Beginners: 10mg/day
  • Regulars: 15mg/day
  • Advanced: 20mg/day

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