Nutrobal (MK-677) Review

By: Rob Miller
1 User Reviews
Fact Checked On: 11-21-2020

Home » SARMS » Nutrobal (MK-677) Review


SARM vs. Growth Hormone Secretagogue (HGH-S)
HGH-S vs. Steroids
HGH-S and the WADA Prohibited List
What is Nutrobal (MK-677)
How Does Nutrobal Work
Potential Side Effects of Nutrobal
What Does the Science Say about Nutrobal
Highlighted Benefits of Nutrobal
How to Use Nutrobal
Stacking Method with Nutrobal
Popular Brands of Nutrobal

Note:  This is just a review.  Click Here to buy Nutrobal legally online.

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Want a way to maximize your muscle gains without a long list of side effects?

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We all want to build more lean muscle mass and even with the best training program and diet, you’ll eventually hit a wall.

This is where the right supplementation can help you break past that wall of genetic limitation.

It’s important to rely on science when looking for a tried and true muscle builder.

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One of the most popular muscle builders in the bodybuilding and fitness industry is MK-677, more commonly known as Nutrobal.

Let’s take a look at what Nutrobal is and how it may be the key to helping you unlock your ultimate muscle building potential.

1.  SARM vs. Growth Hormone Secretagogue (HGH-S)

Although it is often categorized as a S.A.R.M., Nutrobal (MK-677) is actually classified as a Growth Hormone Secretagogue, or HGH-S.

What’s the difference?

In terms of the benefits you can expect, there isn’t much of a difference.

Even in the method of achieving those benefits, there isn’t a huge difference between the two.

Still, there are a couple things to consider if you are on the fence between using a S.A.R.M. and an HGH-S.

S.A.R.M. is short for Selective Androgen Receptor Modulator.

When you take a S.A.R.M., the compounds within get to work to promote action in specific anabolic receptor sites.

This is different from anabolic steroids, which tend to promote anabolic properties throughout the body with no discretion.

When it comes to maximizing muscle without the side effects, the way a S.A.R.M. works is really important.

It promotes anabolism and not androgenic properties.

Anabolic properties promote muscle growth while androgenic properties are associated with the development of male-focused features.

An androgenic environment is responsible for the side effects commonly associated with anabolic steroids such as acne, gyno (man-boobs), and mood swings.

Focusing on the anabolic environment inside your body ensures that you achieve muscle growth without the side effects.

Now on to the Growth Hormone Secretagogue (HGH-S).

For decades, a preferred alternative to anabolic steroids was human growth hormone injections.

As users quickly found out, these injections put a strain on the wallet and body.

Not only did keeping up with them mean that you are going to have to continually leave your arm at the counter be the register, but it also meant that you would be more likely to experience some of the less than desirable side effects that it has to offer.

Then scientists discovered that growth hormone receptors could be stimulated to increase production.

No injection required!

Enter Growth Hormone Secretagogue.

HGH-S are small peptides that directly stimulate growth hormone receptors to pump out…

You guessed it: More growth hormone.

Nutrobal, in particular, is able to bypass the somatostatin barrier to effectively promote more growth hormone production.

You aren’t supplementing with synthetic growth hormone as you would be with injections.

Rather, your body is creating its own growth hormone.

The difference is that it’s doing so in far larger amounts than normal.

This surplus of growth hormone will naturally have benefits similar to, if not better than, a S.A.R.M.

If you are using an HGH-S, muscle building is just one several benefits you can expect.

Keep reading to find out exactly what Nutrobal can do for you, your muscle, and your connective tissue.

2.  HGH-S vs. Steroids

As I briefly touched on above, anabolic steroids are going to focus on promoting both an anabolic AND androgenic environment in the body.

Sure, you’ll see muscle gains but you may also see a list of androgenic-based side effects including mood swings, elevated levels of estrogen, gyno, acne, and hair loss.

Anabolic steroids are able to promote this wide array of benefits and side effects because they are actual sex steroids.

Your body isn’t producing excess levels of anabolic compounds.

You are injecting the growth factors directly into yourself.

HGH-S, on the other hand, promotes the natural production of growth hormone, allowing your body to do the work.

This eliminates many, if not all, of the side effects associated with anabolic steroids.

What’s more, your body will not have the dependency on HGH-S following a cycle as it normally would with anabolic steroids.

Cost wise, HGH-S is a far smarter choice.

An injectable anabolic steroid cycle will cost your far more than a cycle of HGH-S.

I think it’s a pretty obvious choice but if you want muscle mass without the potential long-term damage, a Growth Hormone Secretagogue (HGH-S) such as Nutrobal (MK-677) has you covered.

3.  HGH-S and the WADA Prohibited List

Are you interested in joining a natural bodybuilding competition?

Want to get involved with a sport that requires drug testing?

Worried that you might run into trouble if you’re taking Nutrobal (MK-677)?

Well, your worries would be justified.

Yes, the use of Nutrobal (MK-677) and other Growth Hormone Secretagogues (HGH-S) are banned.

These compounds are strictly tested for and do show up in the industry standard tests.

You can check out the full list on the World Anti-Doping Agency website.

4.  What is Nutrobal (MK-677)?

nutrobal (mk-677) review

If you’ve decided to jump off the fence and on to the side of Growth Hormone Secretagogues (HGH-S) then you’ve made an excellent choice.

Let’s talk about one of the most famous, most used, and most celebrated HGH-S supplements: Nutrobal (MK-677).

Nutrobal (MK-677) is a growth hormone secretagogue and it is conveniently available to be taken in pill form.

No injections at all.

Originally used in the medical field as a way to protect against muscle catabolism, or muscle breakdown, for those suffering from degenerative disorders, Nutrobal quickly gained the attention of muscle driven athletes.

The medical history of Nutrobal makes it especially appealing because it has a variety of studies to back its benefits.

What’s more, these studies highlighted the safety efficacy of Nutrabol.

Think about it: How many supplements have you tried where a giant warning label explicitly said that the product had not been tested for safety?

Nutrabol, on the other hand, has been studied, handled, and prescribed by medical professionals.

No wonder it has become one of the most used muscle mass supplements.

5.  How Does Nutrobal Work?

The big question on your mind: How does this thing work?

First, once you ingest Nutrobal (MK-677), it gets to work and bypasses the somatostatin barrier.

Somatostatin is a hormone that keeps the human growth hormone in check. It does so by inhibiting the production of growth hormone once normal levels are achieved.

As a reminder, human growth hormone plays a very important role in promoting muscle recovery and growth.

If you had a way to take down the barrier that limits the production of growth hormone, the result could be more lean muscle tissue AND an effective system of protection for the muscle you’ve already built.

Nutrobal is able to jump right over this barrier to promote the production of more growth hormone.

In particular, Nutrobal promotes growth hormone production in four specific ways:

  1. It stunts the growth hormone limiting signaling sent out by somatostatin. (Source)
  2. It reduces the release of somatostatin.
  3. It boosts the signaling of growth hormone in the body.
  4. It directly increases the amount of growth hormone that is released.

Not too shabby for a non-steroidal muscle builder, right?

6.  Potential Side Effects of Nutrobal

A proven muscle builder that can simply be taken as a supplement and not an injection?

Sound too good to be true?

There has to be a number of side effects waiting for you, right?

While Nutrobal (MK-677) doesn’t pack the same number of side effects as anabolic steroids, you can rest assured that there are some things to watch out for.

The most commonly reported side effects of using Nutrobal involve the following:

Very noticeable increase in appetite Note: If you’re trying to gain serious muscle mass, I wouldn’t consider this a negative side effect.

Numb / Swollen hands

• Muscle pain

• Occasional fatigue (See here, 2nd post down)

Some less common side effects reported on popular forums include the following:

• Mood swings. I highly doubt this to be true, I think this is more psychosomatic than an actual side effect.

• Heartburn

• Indigestion

Insulin resistance

One extremely rare side effect involves gyno-esque symptoms but this is particular to users who are prone to prolactin sensitivity.

7.  What Does the Science Say about Nutrobal?

You know how it works and you know what to expect in terms of potential side effects so what about its benefits? Let’s take a look at the most commonly cited benefits in a variety of scientific studies.

Boost Growth Hormone

Shouldn’t be a big surprise but it’s important to know that the claims of growth hormone production aren’t just forum talk.

Studies have demonstrated that the use of Growth Hormone Secretagogues may result in a direct increase in growth hormone levels. (Sources here, here, and here)

Increases IGF-1

Insulin-like growth factor, more commonly known as IGF-1, is very important in muscle building but it can also support health in other ways.

For example, studies show those who suffer from chronic inflammation are low in IGF-1.

The one thing you have to watch out for with IGF-1 is its association with sending cancer growth into overdrive.

This is a rare occurrence and only happens with people who are cancer prone.

IGF-1 has not been proven to promote cancer development. (Sources here and here)

Anti-Catabolic / Protects Muscle Mass

Next up is the primary reason that Nutrobal was used in a medical setting: It is an anti-catabolic compound.

Certain diseases, malnutrition, and over-training can tear down muscle tissue.

Nutrobal has been shown in studies to be able to protect muscle tissue from catabolic breakdown, making it ideal for anyone who trains hard or who is experimenting with a new diet. (Source)

Doesn’t Promote Cortisol Production

Continuing with this idea of muscle protection, Nutrobal has been shown to increase levels of growth hormone and IGF-1 without an increase in the catabolic hormone, Cortisol. (1-6)

May Boost Cognitive Ability

While further research is needed, some studies suggest that Nutrobal may be effective in preventing cognitive decline while promoting memory and learning ability.

More studies are needed but the implications here are huge, especially for the elderly population who suffer from diseases such as Alzheimer’s. (Source)

8.  Highlighted Benefits of Nutrobal

• Supports fat loss
• Boosts lean muscle gains
• Protects current levels of muscle
• Ideal for cutting or etching those defined lines in muscle
• Promotes recovery
• May promote cognitive ability (1-7)

9.  How to Use Nutrobal

Obviously, you want to take your brand of Nutrobal as directed; however, in general, the ideal dose of the supplement begins at 5 mg and can be increased to 25 mg.

Nutrabol is taken daily and a typical cycle lasts 10 weeks.

If you are going to increase the dosage, I’d recommend doing so each week.

For example, you can start with 5 mg on your first week then increase the dosage to 8 to 10 mg on the second week.

Here’s a recommended cycle chart but be sure to check the label of the product as well. Dosages may vary from brand to brand.

Week 1: 5 mg

Week 2: 10 mg

Week 3: 10 mg

Week 4: 15 mg

Week 5: 20 mg

Week 6: 25 mg

Week 7: 25 mg

Week 8: 25 mg

If you use the Chemyo ( brand of Nutrobal, you’ll get a 1 ml dropper that looks like this: content/uploads/2017/08/an example of the chemyo
An example of Chemyo’s 1 ml dropper.

This way you’ll be able to accurately measure your dose.

10.  Stacking Method with Nutrobal

Due to its unique properties and lack of side effects, Nutrobal can be stacked with a number of other muscle building and fat loss compounds. The most common supplements that are stacked with Nutrobal are the following:

• Andarine

If you go through the forums online, you’ll see that Cardarine is the most stackable compound with Nutrobal. Cardarine is an excellent choice because it is protein sparing and promotes fat loss benefits while reducing inflammation.

Just like with Nutrobal, you want to start low with the dose. Never exceed 20 mg of Cardarine.

Here is a recommended stacked cycle chart:

Week 1:

  • Nutrobal: 5 mg
  • Cardarine: 5 mg

Week 2:

  • Nutrobal: 10 mg
  • Cardarine: 10 mg

Week 3:

  • Nutrobal: 10 mg
  • Cardarine: 15 mg

Week 4:

  • Nutrobal: 15 mg
  • Cardarine: 20 mg

Week 5:

  • Nutrobal: 20 mg
  • Cardarine: 20 mg

Week 6:

  • Nutrobal: 25 mg
  • Cardarine: 20 mg

Week 7:

  • Nutrobal: 25 mg
  • Cardarine: 20 mg

Week 8:

  • Nutrobal: 25 mg
  • Cardarine: 20 mg

Here are two popular brands of Nutrobal (MK-677) that received the most support and positive reviews:

12.  Conclusion

For those who have reached their genetic limits and want to punch through without turning to illegal anabolic steroids, then Nutrobal (MK-677) may be the answer.

This oral supplement helps to hit the brakes on somatostatin, a hormone that limits the production of growth hormone.

Nutrobal also directly supports an increased production in growth hormone. The result is more lean muscle mass, protection for your current muscle, and potential cognitive benefits.

The benefits of Nutrobal extend to both the muscle bound and the elderly who watch a decline in their levels of growth hormone and IGF-1.

Taken as a part of a well-structed diet and exercise program, Nutrobal may be able to help you reach new heights of muscle and glory.

Have you used Nutrobal (MK-677)? Leave your review below!


1. Ghigo E, Arvat E, Camanni F. Orally active growth hormone secretagogues: state of the art and clinical perspectives. Ann Med. 1998 Apr;30(2):159-68.

2. Hersch EC, Merriam GR. Growth hormone (GH)–releasing hormone and GH secretagogues in normal aging: Fountain of Youth or Pool of Tantalus? Clinical Interventions in Aging. 2008;3(1):121-129.

3. Fuh VL, Bach MA. Growth hormone secretagogues: mechanism of action and use in aging. Growth Horm IGF Res. 1998 Feb;8(1):13-20.

4. Laron Z. Insulin-like growth factor 1 (IGF-1): a growth hormone. Molecular Pathology. 2001;54(5):311-316.

5. Lazarus DD, Moldawer LL, Lowry SF. Insulin-like growth factor-1 activity is inhibited by interleukin-1 alpha, tumor necrosis factor-alpha, and interleukin-6. Lymphokine Cytokine Res. 1993 Aug;12(4):219-23.

6. Velloso CP. Regulation of muscle mass by growth hormone and IGF-I. British Journal of Pharmacology. 2008;154(3):557-568. doi:10.1038/bjp.2008.153.

7. Lupien SB, Bluhm EJ, Ishii DN. Systemic insulin-like growth factor-I administration prevents cognitive impairment in diabetic rats, and brain IGF regulates learning/memory in normal adult rats. J Neurosci Res. 2003 Nov 15;74(4):512-23.

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User Questions and Answers

How can I get the best MK-677 / Nutrobal HGH releaser and trust on receaving the product I demand? -alex

Check out either of these two sites: or SARMS-1.- Rob

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2 out of 2 people found this question helpful.

at what retail outlets is this available? Also I am 67 year old and recovering from heart surgery will this help? -john

You'd have to check at your local stores to see if they carry them. As far as I know, it would only be the "mom and pop" stores that you'll find them at, not chains like GNC. As for your age and condition, you'll have to check with your doctor about whether or not you're healthy enough.- Rob

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Author: Rob Miller

Supplement Critique

Rob Miller founded over 7 years ago, and has been the chief editor ever since. He has a diploma in Advanced Dietary Supplements Advisor, and worked at GNC for 3 years. He KNOWS supplements, both inside and out. Rob currently resides in Jupiter, FL, with his wife of 4 years.  Learn more about him in his Bio here. Follow him on Twitter , Facebook, LinkedIn, or find him on Google +.

20 comments on “Nutrobal (MK-677) Review”

Leave A New Comment

  1. How to use it? Should I just throw 1ml from
    pipet in to my mouth?

    Or should I take 1ml and then drink water after? or should I mix with a glass of water and then drink this mix?
  2. I ordered mk-677 and lgd 4033. I am already taking halodrol. is there any benefit or detiment in stacking all 3. should I discontinue the halodrol?
    1. Nah I would cycle off the Halodrol. The MK-677 and LGD is a really good stack, no need to take them with Halodrol.

        1. Nah hang on to it. It’s actually a decent supplement on it’s own, I just wouldn’t stack it with the others.

    1. Hey Alex,
      No Nutrobal is not injectable. You basically just take the dropper and either drop it under your tongue, or mix in a drink like you suggested.

      I will say this, the taste isn’t very appealing. 🙂
  3. I just started a cycle of hi-tech halodrol. can this be successfully stacked with mk-677, and/or hi-tech osta-plex?
    1. Hey Charles,
      Yeah that shouldn’t be a problem. But I would stack it with either / or, not both the Hdrol and Osta-plex.

        1. Sorry I should have mentioned that in the previous comment. You should see a reduction in fat and water weight, increased lean muscle, and possibly even an increase in sexual performance.

    1. Hey Shane,
      Absolutely, and I would actually recommend it. The Nutrobal will help with recovery and weight loss / fat burning, and the Ligandrol will help with strength / mass increases. I would pick them up on Proven Peptides, I’ve run their stack in the past with really good results. Here’s their site:
  4. My question is quite simple. I’m 49 years old overweight have some muscle.

    Need to stack that will increase muscle size while helping me cut fat dramatically. Thank you very much

    1. Hey Sam,
      I would recommend you stack a fat burner called Instant Knockout along with a testosterone booster called Prime Male. The 2 work great when combined, and will help you shed off the excess fat quickly, as well as build lean muscle.

      Here’s my reviews of each:

      Instant Knockout –

      Prime Male –

      Also, for your convenience I’m sending you my free “How To Get Ripped Quick” ebook, as well as some bonuses, to your email. It’s packed with tons of tips on diet and exercise to help you get fast results.
        1. Hey TJ,
          Sorry for the late reply. I didn’t notice any side effects with Nutrobal, but as with any supplement they are certainly possible. You can learn more about them here.

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