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MK-677 (Ibutamoren)
Original price was: £119.98.£89.98Current price is: £89.98.
- Free next-day UK delivery and international shipping ✅
- 25 mg/ml concentration ✅
- 30 ml total volume ✅
- HPLC tested ✅
- 99% purity ✅
- View PDF purity report
MK-677: A Growth Hormone Secretagogue
Disclaimer: The following product is intended solely for research purposes. We do not promote or encourage any consumption of MK-677 outside of authorised trials.
MK-677, also known as ibutamoren, is a powerful growth hormone secretagogue that stimulates the release of:
- Growth hormone (GH)
- Insulin-like growth factor 1 (IGF-1)
Unlike anabolic steroids or SARMs, MK-677 does not suppress natural testosterone production. It is widely researched for its potential to:
- Increase muscle hypertrophy (size)
- Enhance recovery
- Improve sleep quality
Benefits of MK-677
- ✅ Increases growth hormone and IGF-1 levels: Supports muscle growth, adipose tissue reduction (fat loss), and overall recovery.
- ✅ Enhances muscle mass and strength: Stimulates natural GH release, leading to lean muscle gains.
- ✅ Boosts fat metabolism: Promotes fat oxidation, improving body composition over several weeks or months.
- ✅ Improves sleep and recovery: Enhances sleep quality by increasing REM sleep, aiding in faster muscle recovery.
- ✅ Supports joint and bone health: Stimulates collagen production, which reduces arthralgia (joint discomfort) and strengthens bones.
- ✅ Does not affect the hypothalamic-pituitary-testicular axis (HPTA): Prevents testicular atrophy (shrinkage) and does not require post-cycle therapy.
How MK-677 Works

MK-677 mimics the action of ghrelin. Ghrelin is nicknamed the “hunger hormone” because it stimulates appetite and decreases satiety (fullness). MK-677 achieves this effect by activating the GHS-R1a receptor in the encephalon (brain). Consequently, IGF-1 levels increase, promoting:
- Muscle growth
- Fat metabolism
- Tissue repair
Unlike synthetic HGH injections, MK-677 enhances the body’s natural GH production, ensuring sustained benefits without the need for injections or hormone replacement therapy. This makes it a popular research compound for:
- Muscle-building
- Anti-ageing
- Metabolic health studies
Reasons for Researchers to Buy Our MK-677 Product
We assure our customers they are receiving top-quality research chemicals. Our MK-677 product undergoes strict testing before it is compounded into liquid form.
We test each batch of raw material with two different laboratories in the USA:
- MZ Biolabs
- Colmaric Analyticals
We are so confident in the quality of our products that we encourage researchers to verify the reports with the aforementioned laboratories.
- ⭐ 99% purity guaranteed: High-quality product and laboratory-tested for research use.
- ⭐ Fast and discreet shipping: Secure packaging with worldwide delivery options.
- ⭐ Trusted supplier: Verified and reputable source for premium research compounds.
- ⭐ Customer support: Our expert team is available to assist with enquiries regarding MK-677 research applications.
⚠ Disclaimer: MK-677 is for research purposes only. It is not for human consumption. Always follow legal guidelines for handling research chemicals.
MK-677 vs. HGH Injections


Researchers often compare MK-677 to synthetic HGH injections due to its ability to increase GH levels naturally.
HGH administration can suppress the body’s own endogenous production of the hormone. MK-677 enables continuous and stable GH secretion, reducing the risk of hormone imbalances or suppression.
Multiple studies have explored the effects of MK-677 on GH stimulation, muscle gain, and metabolism.
Frequently Asked Questions
Is it Legal to Buy in the UK?
Yes, MK-677 is legal to buy in the UK for research purposes. At UK SARMs, we offer high-quality MK-677 for sale to healthcare professionals to study its effects responsibly. It is illegal to buy MK-677 for bodybuilding purposes.
Where Can I Purchase MK-677 in the UK?
For researchers attempting to buy MK-677, UK SARMs is a trusted supplier offering laboratory-tested, high-purity MK-677. Whether our customers are new to ibutamoren or looking to restock this growth hormone secretagogue, we provide reliable shipping throughout the UK and transparent product information to support researchers’ objectives.
Information
Compound Details
- Molecular formula: C₂₇H₃₆N₄O₅S
- PubChem CID: 6450830
- Molecular weight: 624.8 g/mol
Brand Details
- ✅ High purity
- ✅ Fast shipping
- ✅ Secure payment options
- 📩 Have questions? Contact us today
Disclaimers
- MK-677 is not to be used by children.
- MK-677 is not legal in the UK when purchased for cosmetic purposes.
- MK-677 is not suitable for women who are breastfeeding or pregnant.
- Researchers are advised to verify the expiry date before administering to subjects.
- The bottle top should be screwed on tightly after use.
- The content on this page is not medical advice.
- Researchers are not guaranteed to receive authentic MK-677 if purchasing from other websites.











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