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Ibutamoren (MK-677)
An MK-677 reference compound supplied in a 60-capsule format, with clear ghrelin-receptor context and a balanced explanation of growth-hormone research.
- Ibutamoren (MK-677)
- MK-777 (Acitamorelin)
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Ibutamoren is a daily capsule that binds the ghrelin receptor and raises your own growth hormone and IGF-1. It is not a SARM. People use it for sleep, recovery and lean mass. Appetite will rise because that receptor also controls hunger.
It mimics ghrelin at the GHSR receptor. Your body then releases more GH, mostly overnight, and IGF-1 follows. Cortisol stays flat. That is why it is used as a night-time GH support, not as a pre-workout.
Not a SARM-style PCT. It does not bind the androgen receptor. Watch appetite, water retention and glucose, and run the full 12-16 week window on the APH listing (20 mg, 60 capsules).
Yes. Most GH is released while you sleep. Ibutamoren increases that overnight release, which is why people report deeper nights and more REM.
No. SARMs bind the androgen receptor. MK-677 binds the ghrelin receptor. Different job, different PCT rules.
Yes, in research designs. Australia customs is flagged. Research use only.
Are you currently natural (no PEDs / SARMs)?
What's your main goal right now?
Testimonials
Key benefits
Raises GH and IGF-1
Ibutamoren is a ghrelin receptor agonist (GHSR-1a). Binding that receptor tells the pituitary to release more of your own growth hormone, with IGF-1 rising downstream. It is not a SARM and does not bind the androgen receptor.
How it works
Deeper sleep
Most of the daily GH pulse happens while you sleep. Raising overnight GH and IGF-1 is why people report more REM and a heavier night, not a stimulant kick. Once-daily capsule, not a pre-workout.
How it works
Monster appetite
GHSR-1a is also the hunger receptor. The same orexigenic signal that lifts GH ramps food drive in a real way - that is expected pharmacology, not a quirk. Eat into it and track calories rather than fighting the receptor.
How it works
Raises your own GH
Ibutamoren binds the same receptor as the hunger hormone ghrelin. That tells your body to release more of its own growth hormone and IGF-1. Typical dose is one 20 mg capsule. Appetite will rise because that receptor also controls hunger.
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Same hunger receptorGHSR-1a is the receptor ghrelin uses. Ibutamoren binds it, so hunger signalling rides along with the GH pulse.
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Your own GHIt does not inject growth hormone. The pituitary releases more of your own GH, then IGF-1 follows downstream.
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Typical doseTypical dose 20 mg. 60 capsules in the bottle. Not a vial, not a SARM, not a pre-workout.
GH rises. Cortisol does not.
GH and IGF-1 go up. Cortisol stays flat. IGF-1 is the downstream signal for lean mass, bone and repair. Appetite goes up with the same receptor. That is expected.
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GH + IGF-1The axis it moves: growth hormone up, IGF-1 up. That is the lean-mass and repair signal people buy it for.
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Cortisol stays flatOlder secretagogues dragged cortisol with them. MK-677 is researched for little or no cortisol rise at this dose.
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Appetite risesSame receptor as hunger, so food drive goes up. Plan calories around it rather than fighting the signal.
Enhanced sleep
Most GH is released while you sleep. Ibutamoren increases that overnight release. Deeper nights, more REM. APH window: 12-16 weeks. Not a pre-workout.
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More REMPeople report deeper nights and more REM, which matches GH being released into sleep architecture rather than as a daytime kick.
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Overnight GHMost of the daily GH pulse already happens at night. Ibutamoren is used to raise that overnight release, not as a gym stimulant.
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12-16 weeksAPH listing window is 12-16 weeks on 20mg, 60 capsules. Run the bottle, do not treat it as a one-week pre-workout.
Product FAQs
Contact us Contact usWhat is Ibutamoren (MK-677)?
Ibutamoren is a daily capsule that binds the ghrelin receptor and raises your own growth hormone and IGF-1. It is not a SARM.
How does it work?
Binds GHSR. Pituitary releases GH in pulses.
Does MK-677 require PCT?
Not a SARM-style PCT. It does not bind the androgen receptor.
Dose?
APH: 20 mg, 60 caps, 12-16 weeks. Papers often 10-25 mg daily. Label is 20 mg.
Is Ibutamoren a SARM?
Neither. MK-677 is a daily capsule that raises your own GH. 20 mg x 60.
Why does appetite go up?
You turned the hunger receptor on. That is the mechanism, not a surprise side.
Sleep, recovery, lean mass?
Those are the shared endpoints: more REM, louder night GH, IGF-1 for repair and lean mass. Run the full window.
Storage
Keep sealed, cool, and dry away from direct light. Follow any lot-specific storage guidance included with your order.
Stacks and buying?
Often paired with a SARM because targets do not overlap. APH fulfils Australia but will not own a customs seize. Research use only.
What makes Ibutamoren different in the APH catalogue?
Ibutamoren is not a SARM. It's a ghrelin receptor agonist (GHSR), originally developed to raise growth hormone and IGF-1 without injections, and it does not bind androgen receptors. The useful distinction versus RAD-140, LGD-4033 or Ostarine is the mechanism, GH pathway signalling rather than anabolic androgen signalling. That's why it's researched as non-suppressive, with no standard PCT requirement.
Who typically buys Ibutamoren?
Buyers usually arrive looking for a specific training or research goal and want a labelled, consistently supplied product from a UK-facing brand. Ibutamoren should be chosen only when it matches that goal and the product category on this page.
If you are unsure, use the on-page quiz (where shown), read the FAQs, or contact support before ordering multi-bottle quantities.
How should I store Ibutamoren?
Store Ibutamoren sealed in a cool, dry place away from direct sunlight, moisture, and heat sources. Keep out of reach of children. Do not use if the seal is broken or the product looks compromised.
Follow any extra storage notes on the label (for example cold-chain guidance on certain research formats).
Is this suitable to stack with other APH products?
Many customers build multi-product carts (for example a primary compound plus recovery support). Whether Ibutamoren fits a stack depends on the product class and your goal - use the description, FAQ, and quiz on this page as a starting point.
This is catalogue guidance only, not medical advice. When in doubt, keep the stack simple and verify compatibility yourself.
What makes APH Science different for this product?
Ibutamoren is not a SARM. It's a ghrelin receptor agonist (GHSR), originally developed to raise growth hormone and IGF-1 without injections, and it does not bind androgen receptors. The useful distinction versus RAD-140, LGD-4033 or Ostarine is the mechanism, GH pathway signalling rather than anabolic androgen signalling. That's why it's researched as non-suppressive, with no standard PCT requirement.
What dose is on the Ibutamoren label?
Use the milligram dose printed on the bottle and this page.
Can I stack Ibutamoren with other APH products?
Stack only what matches this product class. Check the description on this page rather than generic recovery or strength copy from another SKU.
This is catalogue guidance only, not medical advice.
What shipping and cart benefits apply when I buy Ibutamoren?
Ibutamoren counts toward free UK shipping over £100, free protein gift thresholds, and next-day gift tiers in the same cart as every other APH Science product. Discrete packaging is standard. Tracked options are available at checkout depending on destination and service level.
How should I store Ibutamoren after delivery?
Store Ibutamoren in a cool, dry place away from direct sunlight and moisture. Keep the bottle closed between uses. Do not use past any stated best-before guidance on the pack. If the product is a research peptide vial rather than a capsule bottle, follow the dry-storage and reconstitution notes on that product page instead.
Is Ibutamoren suitable for beginners?
If you are new to this category, start by reading the full product description, FAQ, and any dosage or research framing on the page. Ibutamoren is positioned for buyers who already understand the compound class - not as a casual everyday multivitamin. When in doubt, choose a lower entry point or speak to a qualified professional before use.
Does Ibutamoren qualify for subscribe and save or bulk pricing?
Where multi-bottle or bulk tiers are shown on the product page, the unit price drops as you increase quantity - that is the live price you add to cart. Subscription options appear only when configured for that SKU. Always check the buy box on Ibutamoren for the current offer rather than assuming a sitewide discount code applies.
What should I do if I have a question about my Ibutamoren order?
Contact APH Science support with your order number and the product name (Ibutamoren). Typical queries include delivery timing, batch documentation, and stacking advice. Response times are usually within one business day on UK working days.
Where do you ship from?
Orders dispatch from the UK with tracked shipping options. Free UK shipping applies on carts over £100.
How long does delivery take?
Timing depends on the service selected at checkout and courier performance. You will receive tracking when the order leaves the warehouse.
How are orders packed?
Orders are dispatched from the UK with standard e-commerce packing. Tracking is provided so you can follow the parcel in transit.
Is every batch third-party tested?
APH Science targets independent lab verification for research batches before release. Certificate or purity paperwork can be requested where available for your lot.
How do bulk buy discounts work?
Where Buy 1 / Buy 2 / Buy 3 tiers appear on the product, choosing a higher tier applies the stated saving at add-to-cart. The price on the button updates to match the selected tier.
How do I track an order?
Use the Track order page with your order details once you have confirmation and tracking. Contact us if a label has not appeared within the expected dispatch window.
How fast do UK orders ship?
Orders typically leave the UK warehouse within 1–2 working days. Free UK shipping applies over £100. International options depend on destination and product type - checkout shows available rates.
All orders use discreet outer packaging. Tracking is provided once the parcel is with the carrier.
Can I get batch / CoA documentation?
Where certificates of analysis or batch documentation are available for a product, APH Science can supply them on request. Include your order number and product name when contacting support.
Keep screenshots of the product page and your invoice for your own records if your lab requires them.
