What Is MK667? Is It Safe To Use?

Published on April 13, 2023.

What is MK667?

MK667 is a selective androgen receptor modulator (SARM) that’s commonly used as a performance-enhancing drug in bodybuilding and fitness circles. MK667 is also referred to as Ibutamoren and is marketed as a growth hormone called secretagogue. Secretagogue is known to increase the body’s production of IGF-1. IGF-1 is key for muscle growth and repair. MK667 is banned in several sports and is illegal to use without a prescription in several countries. Another thing we noticed is that MK667’s long term effects aren’t well understood and researched.

Is MK667 safe to use?

We’re not too sure. Many users of MK667 have said that MK667 increased their appetite, fatigue, headaches, and temporarily decreased their sensitivity to insulin. There are also concerns that MK667 could increase the risk of certain cancers, but there isn’t enough research to confirm this. MK667 isn’t well researched, unlike creatine, so we can’t say if it’s safe or not to use. Consult with a healthcare professional before using MK667 or any other SARM.

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