Ibutamoren (MK-677)
Growth Hormone Secretagogue
£45.00
What’s Included
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60 capsules per bottle -
10mg pure MK677 per capsule
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2-month supply (1 cap daily)
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Third-party lab certificate included
Lab Tested
Third-party verified
Fast Shipping
3-5 business days
24/7 Support
Expert guidance
Product Description
MK677 Ibutamoren is a potent, orally active growth hormone secretagogue that mimics the action of ghrelin. It stimulates the release of growth hormone from the pituitary gland, leading to increased levels of IGF-1 (Insulin-like Growth Factor 1).
Our premium MK677 is manufactured in state-of-the-art facilities and undergoes rigorous third-party testing to ensure maximum purity and potency. Each capsule contains 10mg of pure Ibutamoren, providing consistent and reliable results for your fitness goals.
35 reviews for Ibutamoren (MK-677)
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Key Benefits
Enhanced muscle growth
Improved sleep quality
Increased bone density
Anti-aging effects
Faster recovery
Improved skin quality
Ingredients & Dosage
Active Ingredients
Ibutamoren (MK677)
10mgGrowth hormone secretagogue
Black Pepper Fruit Extract (Piper nigrum)
5mgEnhances absorption and bioavailability
Purity & Quality
Third-party lab tested 
99.2%+ purity guaranteed 
24-month shelf life Mechanism of Action
MK677 Ibutamoren works by mimicking the action of ghrelin, a hormone that regulates hunger and growth hormone release. When MK677 binds to ghrelin receptors in the brain, it triggers the release of growth hormone from the pituitary gland.
This increase in growth hormone leads to elevated levels of IGF-1, which is responsible for many of the compound’s beneficial effects, including increased muscle mass, improved bone density, and enhanced recovery.
The compound has a half-life of approximately 24 hours, allowing for once-daily dosing while maintaining stable hormone levels throughout the day.
Key Actions
How to Use
Dosage
10mg once daily
Timing
Take before bedtime for optimal results
Cycle Length
8-12 weeks followed by 4-week break
Important
Dietary supplement use only
Take with or without food. Consistent timing recommended for best results.
Frequently Asked Questions
What is MK677 Ibutamoren?
MK677 Ibutamoren is a growth hormone secretagogue that stimulates the release of growth hormone and IGF-1, supporting muscle growth, fat loss, and recovery.
Is MK-677 a steroid?
No, MK-677 is not a steroid. It does not act on androgen receptors. Instead, it naturally boosts growth hormone and IGF-1 production, helping improve muscle recovery and performance.
What are the side effects of MK-677?
Some users report increased appetite, temporary fatigue, or mild water retention. Experiences vary from person to person, and not everyone notices these effects.
How long before I see results with MK-677?
Most users notice improvements in sleep, recovery, and appetite within the first week. Muscle growth and fat loss benefits typically become more visible after 4-6 weeks of consistent use with proper diet and training routines.
How should I store this product, and what is its shelf life?
Store the product in a cool, dry place away from direct sunlight. Keep the container tightly sealed and out of reach of children. When stored properly, the product has a shelf life of up to 24 months from the manufacturing date.
Is this product tested for purity?
Yes, all our products undergo rigorous third-party testing for purity, potency, and quality assurance.
Does MK-677 affect testosterone?
No, MK-677 typically does not suppress testosterone levels. Its effects are centered around growth hormone pathways, not testosterone regulation. However, individual responses may vary with prolonged use.
How to cycle MK-677?
A common cycle length for MK-677 is 8-12 weeks, followed by a 4-week break. Some experienced users extend cycles up to 16-20 weeks. Consistent use during the cycle can help you achieve optimal results.
How should I take MK-677, and what is the recommended daily dosage?
MK-677 is typically taken once daily, preferably before bedtime for optimal results. A common daily dosage ranges from 10-25 mg, depending on individual goals and experience. It can be taken with or without food, but keeping the timing consistent each day helps maintain steady levels in the body.
Customer Reviews
Sleep has gotten much better
MK-677: Decided to try MK-677 at one capsule a day just before bed which is about 10mg , just to see if it is worth all the hipe. After about 10 days I started eating laike an elephant, which made bulking 5 times easier. Also finally started sleeping full nights, like I was feeling energised in the morning. While in the gym I could finally feel that I was bulking and putting on muscle. Definitely would consider taking it again.
Went from skinny to jacked in 12 weeks.
Write a Review
Michael Brown –
Ran 10mg of MK-677 for starters just to see how my body would respond. After about a week I started noticing some efects like appetite increase, vivid dreams, but nothing too crazy. If I would take it again then, most likely it would be a bigger dose, I would say two capsules before breakfast. Overall a great product, yall cooked with this one!
Ryan Campbell –
Best, simply the best!!!
Mark Young –
Customer support stuff was great
Daniel Walker –
After 6 weeks good results.
David Lopez –
It’s really a game changer if you can get enough food – I went from eating 1.6k calories a day to 2.5k in just 4 weeks!!!!
William Harris –
Works great!
John Smith –
Good, took 2 capsules a day for 6 weeks and gained 5 kg.
James Miller –
Honestly, I bought this just for sleep, but I’m not complaining about the size gains lol
Robert Garcia –
Fast shipping!
Michael Thompson –
I wanted to leave negative reviews because at the start I didn’t feel anything, only that I ate a lot more and slept better. I want to say that around week 3 I started seeing that I had gained size and my lifts went up. Overall good product that takes time to work.
Jake M. –
Absolutely game changer! Been using MK677 for 8 weeks and my recovery time has improved dramatically. Sleep quality is incredible and I’m seeing real muscle gains. Will definitely reorder!
Richard Brown –
I mean, it did what it said it would. Gained muscle mass with little to no fat in a relatively short time frame. My only complaint is that it took 6 to 8 weeks.
Brian Adams –
Delivery time was a bit long, but the MK itself is great. I recommend it.
Joseph Martinez –
Hmm, usually I don’t leave reviews, but my god what a goated find. It worked amazingly for sleep, appetite and muscle 5/5
Jason Perez –
Better than expected.
Timothy Mitchell –
If you want to sponsor me then hit me up I really realy love it. In just 12 weeks my weight went up by 14 kilograms.
Ronald Carter –
Super fast shipping and package was discrete.
Edward Mark Nelson –
Sori ENG is not my first language. Wanted to to say that is legit and my mother didint know about it, because the package was not branded.
George Baker –
Not much to say: it did what it needed to do, nothing more, nothing less.
Thomas Robinson –
What can I say, just mental… 100/10
Kevin Green –
This is my third time ordering from Core, and every time I receive my order in a timely manner. All three times, MK has worked wonderfully.
Kenneth Scott –
Wow, works, big W.
James Anderson –
When I took MK-677, I was taking 20mg instead of advised 10mg. The effects were really noticeable overall. At the start I didnt feel much, I mean yes a little better sleep, felt a bit more hungry. Around the second week everything hit at the same time, It was just the thing I was looking for. For the first timers I would recomend trying 10mg just to understand how the body will react. Goon product.
Joshua Hill –
Although the company is new, at least from my first order everything seems legit! MK comes in a hermetically sealed container, and currently I’m feeling great – – -I’m on week 5.
Andrew Lopez –
…. Wanted to g
Paul Wright –
Very nice!
Steven King –
Didn’t expect it to arrive, but here we are. It looks legit.
Anthony Richardson –
60 capsules are great, but it would be cool if there were 90 🙂
Donald Hernandez –
Fine.
Anthony Allen –
The price is amazing.
Matthew Hall –
Works, works.
Christopher Lewis –
Didn’t have any side effects.
Charles Clark –
Went from skinny to jacked in 12 weeks.
John Taylor –
MK-677:
Decided to try MK-677 at one capsule a day just before bed which is about 10mg , just to see if it is worth all the hipe. After about 10 days I started eating laike an elephant, which made bulking 5 times easier. Also finally started sleeping full nights, like I was feeling energised in the morning. While in the gym I could finally feel that I was bulking and putting on muscle. Definitely would consider taking it again.
Jason Phillips –
Sleep has gotten much better