YK 11

About YK 11

YK-11 is a synthetic selective androgen receptor modulator (SARM) and myostatin inhibitor developed to promote muscle growth. Research suggests that YK-11 may help stimulate follistatin production, a protein that inhibits myostatin and encourages increased muscle mass. This unique mechanism differentiates YK-11 from other SARMs, as it exhibits both anabolic activity and acts as a myostatin antagonist. While promising for muscle-wasting conditions, YK-11 remains a research chemical not approved for human or veterinary use.

What is YK-11?

YK-11 is derived from the steroidal backbone of dihydrotestosterone (DHT), giving it the ability to bind strongly to androgen receptors. Unlike traditional anabolic steroids, it selectively targets muscle and bone tissue without impacting other organs. In vitro studies suggest YK-11 may increase lean muscle mass and strength by upregulating follistatin, effectively suppressing myostatin, which limits muscle growth. This makes it a compound of interest in the study of muscle degenerative diseases and sarcopenia.

Although structurally similar to steroids, YK-11 is generally categorized as a SARM due to its selective action and reduced side effects profile compared to anabolic agents. However, its steroidal structure and incomplete research place it in a unique class. Due to limited human trials, all available data is based on in vitro or animal studies and anecdotal feedback from research subjects.

• Follistatin stimulation
• Muscle growth promotion
• Potential support for muscle-wasting disorders

Chemical Structure of YK-11

• Application: SARM / Myostatin Inhibitor
• CAS: 1370003-76-1
• Molecular Weight: 430.54 g/mol
• Chemical Formula: C₂₅H₃₄O₆
• Synonyms: YK11, YK-11, Myostine

Potential Effects of YK-11

Scientific data indicates that YK-11 could play a role in increasing muscle mass and strength by limiting myostatin. It is believed to support the growth of new muscle fibers and enhance protein synthesis when used alongside proper resistance training in a research environment. Early studies suggest minimal interaction with estrogen pathways, reducing the likelihood of water retention and gynecomastia.

• Promotes muscle hypertrophy
• May assist in reducing muscle loss
• Could increase muscle strength and performance markers

Proper Dosage of YK-11

There is no universally accepted dosage for YK-11 as all findings remain in preclinical stages. Doses used in research vary based on experiment design and desired outcomes. Researchers are advised to follow standard protocols and consult existing studies. Any usage beyond controlled environments is not endorsed.

Potential Side Effects of YK-11

As with most research compounds, YK-11 has potential side effects that are not fully understood. Limited studies indicate that it may suppress natural testosterone production and exhibit androgenic activity due to its DHT-derivative nature. Liver toxicity is also a consideration due to its methylated structure. Researchers should proceed with caution and monitor all variables during testing.

YK-11 remains a powerful research chemical with unique properties that make it a subject of interest in muscle growth studies. However, more rigorous, peer-reviewed studies are necessary to validate its efficacy and safety in clinical settings.