MK-677 Basic Information
Product Name: MK-677
Alias: Ibutamoren
CAS NO.: 159634-47-6
Molecular Formula: C27H36N4O5S
Molecular Weight: 528.664
Purity: 98%+
Appearance: White Powder
Grade:Pharmaceutical Grade
Attention: MK677 is easily moisture in the summer, so please be sealed and stored in the refrigerator.

What is Ibutamoren?
Ibutamoren (developmental code names MK-677, MK-0677) is a non-peptidic, potent, long-acting, orally-active, and selective agonist of the ghrelin receptor and a growth hormone secretagogue,mimicking the growth hormone (GH)-stimulating action of the endogenous hormone ghrelin.It has been demonstrated to increase the release of, and produces sustained increases in plasma levels of several hormones including GH and insulin-like growth factor 1 (IGF-1), but without affecting cortisol levels.It is currently under development as a potential treatment for reduced levels of these hormones, such as in children or elderly adults with growth hormone deficiency,and human studies have shown it to increase both muscle mass and bone mineral density,making it a promising therapy for the treatment of frailty in the elderly.It also alters metabolism of body fat and so may have application in the treatment of obesity.
How it Work?
MK-677 works by increasing the release of several hormones in the body, including growth hormone and IGF-1, and it does this without affecting cortisol levels. Subsequently, the increase in IGF-1 and growth hormone comes with a host of benefits which we will discuss in this article. Furthermore, it fights also obesity by altering the metabolism of body fat.
What is Usage on bodybuilding?
MK-677 will cause a rise in IGF-1 and growth hormone even in a diet induced nitrogen wasting state. This means that even without making any serious effort in the kitchen or the gym it is almost impossible not to gain muscle mass and lose body fat with MK-677. Therefore, athletes can benefit in several ways from MK-677:
1. Fat loss
2. Muscle gain
3. Injury healing and bone strengthening
Moreover, it will also aid in such things as endurance, mood, sleep, and general health. Hence, Mk-677 gives the athletes all the benefits of growth hormone and IGF-1 increase without the high financial cost and side effects of the HGH.
What is MK-677 (Ibutamoren) Stacking?
1. Endurance: Many endurance athletes have been pinched over the years for human growth hormone, so naturally, we can deduce that MK-677 would work beautifully for this purpose. Stack it with 20 milligrams (mg) a day of cardarine for a lethal endurance stack, and blow away your competition on your next bicycle/road race.
2. Fat loss: MK-677 is so good at preventing fat gain and fighting obesity, that it is almost impossible to gain body fat on it. However, you can take these effects even further – stack it with andarine and cardarine to get a lethal fat burning triple stack.
3. Mass gain: Being able to gain mass without the fear of spiking your body fat measurement is something we all wish for, but unless you have tremendous genetics, it is very difficult to accomplish. MK-677l evens the playing field when stacked with LGD and anabolic steroids.
4. Overall health: MK-677 can give an improved mood, sleep, cholesterol levels, injury healing, and immune system boosting. Stack it with N2guard, Ostarine and HCGenerate ES to get a perfect stack for those who have let their bodies go due to injury, or who are in between cycles and looking to improve their overall health without risking anabolic steroid use and having a setback.
What is Side Effect for MK-677?
Increased appetite
Lethargy
Joint pain if you have previous medical conditions or elevated hormone levels
Insulin resistance
Possible increase in prolactin levels, which can be controlled
What is MK-677 (Ibutamoren) Dosage?
Just like with other SARMs, the half life of MK-677 is a robust 24 hours, so once a day dosing is all that is needed.
It is recommended taking MK-677 upon waking up, on an empty stomach before you eat breakfast, and 25 milligrams (mg) a day is the bread and butter dosage. Some users will go as low as 5mg, or as high as 50mg.
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