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The full MK 677 guide: Benefits, dosages and side effects

The MK 677 guide

MK 677, also known as Ibutamoren, has gained popularity among bodybuilders and athletes due to its effect on growth hormone levels and IGF-1.

In this guide, we will provide answers to many common questions about Ibutamoren.

What is MK 677?

MK 677 is a Growth-Hormone-Releasing-Hormone, or a Growth Hormone secretagogue. As the name implies, this means it causes a release in Growth Hormone.

It does this by mimicking the hormone ghrelin in the brain. You may have heard about this hormone before as it is a key chemical in hunger. 

Recently, there have been a few of these products to surface on the market, including Growth-Hormone-Releasing-Peptide-6 and Hexarelin. 

One of the perks of this particular version is that it doesn’t affect cortisol levels. The so-called stress hormone doesn’t increase with the use of this supplement, which stands in contrast to a few of its counterparts. This mean that increased fat storage, anxiety or a rise in blood pressure shouldn’t occur with its use. 

MK-677 (Ibutamoren) liquid 30ml (25mg per ml) - HQSARMS
MK-677 (Ibutamoren)

Buy MK-677 (Ibutamoren) liquid

When to take Ibutamoren?

You should take MK-677 in a single dose each day at the same time, preferably in the evening before bedtime. If you want to take advantage of the increased appetite because you are bulking, then taking it in the morning is a good option.

How long to take MK 677?

The recommended cycle length for MK677 is 16 to 20 weeks, to get the most benefits out of it. While Ibutamoren can be used for an extended amount of time, we would recommend taking a short break after 20 weeks.

How long does it take to work?

You will notice a strong increase in appetite already during the first week. Some people would describe it as extremely hungry. During the second week, you should notice the improved sleep quality associated with Ibutamoren. The anabolic effects of MK-677 will take longer to kick in. It takes at least 4 weeks to notice any difference in muscle mass or strength and these benefits will become more apparent when taken for an extended amount of time.

What is the optimal dosage of MK-677?

Ibutamoren is used in dosages between 10 and 50 mg per day. The optimal dose of MK-677 is roughly 25 mg per day. Anything above this dose will likely produce more side effects, while having limited additional benefits.

How does Ibutamoren work?

Is MK 677 a SARM?

Some people mistake MK677 for a SARM (Selective Androgen Receptor Modulator). In reality, it’s actually not a SARM, but a growth hormone secretagogue. Unlike SARMs, which target the androgen receptors much in the same way as anabolic steroids, Ibutamoren influences the levels of human growth hormone and IGF-1.

Does MK 677 cause testosterone suppression?

Since Ibutamoren doesn’t affect the androgen receptors, it does not lead to a decrease in natural testosterone production. MK-677 is not suppressive, which means there is also no need for any type of PCT.

The legal status of this compound is the same as other SARMs. So yes, MK 677 is legal to buy and use in every country around the world. There is one exception, Australia, where you will need a doctor’s prescription for it because it’s a Schedule 4 prescription only compound.

Ibutamoren has not been approved for human consumption, and is currently still a investigational new drug. This means it can be legally sold as a research chemical.

For more information on the legal status of SARMs, read our blog post: Are SARMs legal in Europe?

Can I stack MK-677?

Ibutamoren can be stacked with SARMs or other compounds, depending on your goal. It can be used for cutting purposes, in combination with Cardarine, or for bulking in a stack with LGD-4033 or RAD-140.

For more information about stacking SARMs, read our blog post: Stacking SARMs: The ultimate guide.

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