MK-677 (Ibutamoren): This SARM Works Very Well During a Cutting Cycle

MK-677, also known as Ibutamoren, is receiving more and more attention these days. At its core, MK-677 is associated with increasing IGF-1 levels and the body’s growth hormone. We do suggest that before you try anything that involves your body, it’s best that you get as much information as you can. To help you with that, this article is going to be an MK-677 review.


MK-677 is the developmental code for the substance known as Ibutamoren. From what is known from research, MK-677 is a long-acting, potent, non-peptidic and selective antagonist of the growth hormone, secretagogue receptor (also known as ghrelin receptor). In other words, it helps in building muscle mass. However, what makes MK-677 unique is it does not increase cortisol levels (also known as the stress hormone) unlike most muscle-building growth hormones out there.

Best Place to Buy MK-677 in 2020: From Experience We Believe Proven Peptides Is The Top Source

The best source for this SARM is a company called Proven Peptides.

This company is my top choice because of a number of reasons; hundreds of positive reviews, lab testing results, fair price etc. have used a number of different brands myself and this is the one that gave me the best results.

Many companies don’t show lab testing results because the results will reveal just how underdosed or even fake their product is.

Therefore, you should only buy from companies that have published lab test results to ensure that the product is legit.

Due to Proven Peptides having a top class reputation, rogue sellers have started to counterfeit its products.

To avoid buying fake products from a 3rd-party seller, I recommend you visit the official website to purchase only genuine products.

Click on the image below to go to the official website.

How it Works

MK-677 is a bio-available and an orally active substance. Explaining how it works on a cellular level can be confusing but MK-677 actually works by targeting multiple regions of the brain that are responsible for metabolic engagement. It does this in 4 ways. It first increases production of GHRH which is a hormone that enhances growth. Secondly, works by reducing somatostatin, a hormone that helps to reduce GH release. Thirdly MK-677 works by promoting GHRH signals in your pituitary gland and lastly, it restrains somatostatin receptor signals. A daily dose of 5mg of MK-677 results in a significant increase in growth hormone levels.

diagram of the molecular structure for Ibutamoren

To increase growth hormone levels, MK-677 mimics the action of the natural ghrelin to stimulate the release of growth hormone from the brain. Ibutamoren also works by increasing appetite in a similar way that the ghrelin hormones do. MK-677 increases growth hormone levels without affecting levels of other hormones such as cortisol. By increasing growth hormone levels, MK-677 increases muscle mass, strength, and lowers production of body fat.  It also reduces muscle wasting, improves muscle strength and gait speed especially among elderly people, and increases body density. Studies have shown that MK-677 also works by improving sleep quality and duration. Improved sleep quality results in a stronger healthier body.

How is it Administered

The clinically tested approach of MK-677 is via oral administration.  The dosage may range from 5mg-25mg per day depending on factors such as weight and age. The great thing about MK-677 is it’s activated the moment it sits in the mouth. It’s best to take the MK-677 during early mornings on an empty stomach. MK-677 may interfere with sleep which is why it’s not recommended to be taken during night time.

Advantages of Using This SARM

  • Helps Build Muscle Mass – MK-677 increases IGF-1 and growth hormone levels, which then leads to a reduction of body fat, increasing muscle strength and increasing muscle mass.
  • Increases Bone Density – MK-677 capsules stimulate the increase of bone turnover. While it is true that bone density may decrease initially because of the increased bone turnover, but in the long run, it will make the bones stronger after the initial effects are over.

Disadvantages of Using This SARM

  • According to clinical studies, MK-677 seems to not carry any side effects. In fact, studies suggest that prolonged use multiplies the benefits many times over.
  • On the other hand, MK-677 is still a relatively new substance. Hence, it may be possible that it has negative side effects that we still haven’t noticed yet.
  • When taking MK-677, always listen to your body. If you feel something is not right, stop and consult with a professional immediately.

Potential Side Effects

MK-677 doesn’t have many reported side effects. Some users have reported water retention and a bloated feeling.

This is not a big issue and can be fought by lowering sodium intake. This is only a small price to pay for some great effects.

Dosage to Be Taken

  • Bulking – MK-677 works really great if you are trying to build muscle mass. For many, a 5mg–10mg capsule per day for 8 weeks seems to work for the bulking phase.
  • Cutting – During the cutting phase, MK-677’s recommended dosage is 3mg-5mg per day for 8 weeks.
  • Recomping – For the recomping phase, the recommended dosage is 5mg-8mg per day for 8 weeks.

Is PCT Needed?

The great thing about MK-677 is it does not need PCT. It’s one of the newer substances that are considered as “stand alone.” Furthermore, MK-677 does not mess with your testosterone levels. Other products and hormones mess with your testosterone levels, which is one of the biggest reasons why PCT is required.

Can Women Use It?

Another great thing about MK-677 is that it’s not androgenic. Thus, women can use it. In fact, one of the first intended uses of MK-677 is to treat women who are suffering from post menstrual osteoporosis. According to research, a dosage of 25 mg per day for women did not result in any adverse effect.

Other SARMs That Stack Well

Because of the nature of MK-677, it’s safe to stack it with most other products out there. However, most have stacked MK-677 with:

  • LGD 4033
  • Ostarine
  • Rad140

As mentioned before, MK-677 is relatively new, thus it’s best that you do thorough research before stacking it with something else.

What is the Half-life?

Knowing the half-life is one of the keys to getting the best results possible. In the case of MK 677, the half-life is 24 hours. This means that you only need to take it once in a day, and off you go. There’s no need for you to time the next intake just to ensure that there’s no gap in the program, which is a common nuisance in some other substances.

How Long Until You See Results

If you take MK-677 and pair it with a decent training regimen and diet, you can expect a rapid increase in your strength, size, muscular fullness, and overall performance. It is not uncommon for users to see a gain of 10 – 20 pounds from just one MK-677 cycle. Keep in mind that most of the gain will usually come in quicker during the first couple of weeks in your cycle. MK-677 is a potent substance and results are often very noticeable.

Will it Make an Athlete Fail a Drug Test?

This largely depends on what kind of sport is being involved. Also, this depends on who is doing the testing. For example, if it is not a World Anti-Doping Agency that is doing the test, then it’s highly unlikely that an athlete will fail the drug test for taking MK-677. However, it is best that you consult with the proper sports department if MK-677 is one of their blacklists.

How to Buy This SARM

MK-677 is a relatively new product, and your chances of finding an “MK-677 for sale” from a local source are slim. Your best option is to order it online. Just be sure that you are dealing with a reputable seller to avoid nightmare scenarios down the road.

What Are the Current Laws?

When it comes to MK-677, it’s a tricky issue. First of all, SARMs are not exactly illegal, but they are also not legal. It usually boils down to who’s purchasing and for what purpose. To make the issue more complex, MK-677 works like SARMs; but when it comes to the technical definition from researchers and scientists, MK-677 is not exactly a SARM. Hence, there’s no clear answer yet.

Follow us on Social Media.