Peptides  /  MK-677 (Ibutamoren)
For Adults · Compounded Oral

MK-677 (Ibutamoren)

An oral growth-hormone secretagogue.

Ibutamoren (MK-677), an orally active compound that mimics ghrelin to stimulate growth-hormone release. It is not a peptide. Prescribed online after a licensed provider reviews your online visit, compounded by U.S. 503A pharmacies, and shipped discreetly to most U.S. states.

$199

Start your online visit →

A few private questions, then a licensed provider reviews your answers.

100% Online 503A Compounded Licensed Providers Discreet Shipping
ForbiddenRx MK-677 (Ibutamoren) vial
At a glance
Form
Capsules
Cadence
Set by your provider
Class
Non-peptide GH secretagogue (oral)
Guided by
Provider review
Helps with
Growth-hormone axis category
For
Adults 18+
The basics

What is MK-677 (Ibutamoren)?

What it is
Non-peptide GH secretagogue (oral)
Forms
Capsules
Supplied as
Strength set by your prescriber
Dosing
Set by your prescriber
Supply
1-month
Visit
Online, reviewed by a licensed provider
Prescription
Provider-reviewed · not available OTC
Shipping
Discreet, unmarked · most U.S. states
Start your online visit →

Ibutamoren, also called MK-677, is an orally active, non-peptide compound that acts on the growth hormone secretagogue receptor (the ghrelin receptor), prompting the pituitary to release growth hormone and raising IGF-1. Unlike the injectable peptides in this catalogue, it is taken by mouth.

Ibutamoren was studied in clinical trials by a pharmaceutical sponsor but was never approved. It is not an FDA-approved medication, and the preparation dispensed here is compounded.

This is a compounded preparation, not an FDA-approved medication, and compounded drugs are not reviewed by the FDA for safety or effectiveness. Individual results are not guaranteed. It is prescribed only where a licensed provider determines it is appropriate after reviewing your health history.

Why people ask about it

Why does MK-677 (Ibutamoren) come up?

Ibutamoren comes up in growth-hormone-axis conversations because it is oral and has been studied in controlled trials, including in older adults. Those trials also reported increased appetite, fluid retention and effects on blood sugar, and the compound was never approved.

✔A provider decides, not a quiz

Every MK-677 (Ibutamoren) prescription here follows a review by a licensed provider of your health history, current medications and goals. If it isn't appropriate for you, it isn't prescribed.

✔Compounded, not a research chemical

Your vial is compounded by a licensed U.S. 503A pharmacy and dispensed against a prescription written in your name — not sold as a "research only" product with no oversight.

Know the difference

Prescribed MK-677 (Ibutamoren) vs. supplements and grey-market vials — what's the difference?

The short answer: unregulated supplements make claims nobody checks, "research only" vials sold online carry no prescription, no pharmacy and no accountability, and a prescribed MK-677 (Ibutamoren) is compounded by a licensed 503A pharmacy against a provider's order written for you.

 Oral supplement"Research only" vialPrescribed MK-677 (Ibutamoren) (Rx)
What it isAn unregulated oral precursorA vial sold without a prescriptionCompounded MK-677 (Ibutamoren) dispensed on a provider's order
Licensed provider reviews youNoNoYes — before anything is dispensed
Compounded by a licensed pharmacyNoNoYes — U.S. 503A
Your name on the vialNoNoYes
Dose set by a prescriberNoNoYes
Legal to sell for human useAs a supplementNoYes — by prescription

The simplest test of any peptide seller: is your name on the vial? A "research only" label means no prescriber reviewed you, no licensed pharmacy compounded it, and nobody is accountable for what is actually inside.

How it works

How does getting MK-677 (Ibutamoren) actually work?

Three steps: answer a short set of medical questions, a licensed provider reviews them, and if they prescribe, a 503A pharmacy compounds and ships it.

I

Answer a few questions

A short private medical questionnaire — your history, current medications and what you are hoping to address. It takes a couple of minutes.

II

Meet your provider live

A provider licensed in your state reviews your answers online — no appointment, no waiting room. They decide whether MK-677 (Ibutamoren) is appropriate.

III

Compounded & shipped

If they prescribe, a licensed U.S. 503A pharmacy compounds your vial and ships it discreetly, with your name on the label.

Who it's for

Who is MK-677 (Ibutamoren) for?

It's for adults who want MK-677 (Ibutamoren) prescribed and compounded properly rather than bought from a grey market. Whether it is appropriate for you is a decision for the provider who reviews your visit.

✔Interested in the growth-hormone axis

You have read about ibutamoren and want it prescribed properly rather than bought from a grey market.

✔You want a real prescription

Reviewed by a licensed provider, compounded by a 503A pharmacy, dispensed with your name on the label.

✔You would rather not inject

Ibutamoren is taken by mouth.

✔You are open to a provider review of your history

It can raise blood sugar and is not appropriate for everyone, including people with an active cancer or diabetes.

✕When it's not the right fit

Ibutamoren trials reported increased appetite, fluid retention and reduced insulin sensitivity. Tell your provider about diabetes, heart failure or any cancer history. It is a compounded preparation, not an FDA-approved medication, and compounded drugs are not reviewed by the FDA for safety or effectiveness. Individual results are not guaranteed. If you are pregnant or breastfeeding, have an active cancer diagnosis, or have significant kidney or liver disease, tell your provider in your answers. New or unexplained symptoms should be evaluated by a clinician rather than self-treated.

How to get it

How do I get MK-677 (Ibutamoren) online?

You answer a few questions, a licensed provider reviews your answers, and — if they prescribe — your medication is compounded and shipped to your door. No insurance required, no in-person appointment, no waiting room.

A few questions

Answer a short set of private medical questions. Add as many peptides as you like; one checkout, and a provider reviews each.

Online provider review

A provider licensed in your state reviews your answers online. Approval is never guaranteed.

Discreet delivery

If prescribed, your vial is compounded by a 503A pharmacy and ships in plain, unmarked packaging to most U.S. states.

Pricing is shown at checkout — no insurance needed, no hidden fees.

Using it & safety

How is it taken, and is it safe?

MK-677 (Ibutamoren) is compounded as capsules. The amount and the schedule are set by the provider who reviews your visit — we deliberately do not publish a dosing regimen here, because that is a clinical decision about you, not a product specification.

Forms & how it's taken

Capsules
Compounded as capsules.
Supplied as
Strength set by your prescriber.
Dose & schedule
Set by your prescriber. Follow the directions on your label.
Supply
1-month supply.
CapsulesProvider-set

Safety & side effects

⚠ Blood sugar and fluid effects

Ibutamoren trials reported increased appetite, fluid retention and reduced insulin sensitivity. Tell your provider about diabetes, heart failure or any cancer history. It is a compounded preparation, not an FDA-approved medication, and compounded drugs are not reviewed by the FDA for safety or effectiveness. Individual results are not guaranteed.

Reported effects are most often related to the injection itself or to infusing too quickly. They can include:

  • Increased appetite
  • Water retention or swelling
  • Joint or muscle aches
  • Raised blood sugar
  • Tiredness

Tell your provider about every condition and medication before starting, including pregnancy or breastfeeding. Stop and seek care for signs of an allergic reaction — rash, swelling of the face or throat, or difficulty breathing. For emergencies call 911.

Compare your options

Which longevity peptide fits you?

A side-by-side look at the gh / longevity options available through ForbiddenRx. Which one is appropriate for you is decided by the provider who reviews your visit.

TreatmentWhat it isFocusFormForRx required
MK-677 (Ibutamoren)
This page		Non-peptide GH secretagogue (oral)Growth-hormone axis categoryCapsulesAdults 18+Yes
5-Amino-1MQSmall-molecule NNMT inhibitor (oral)Metabolic categoryCapsulesAdults 18+Yes
AOD-9604Growth-hormone fragment (hGH 176-191)Metabolic categoryInjectionAdults 18+Yes
CartalaxSynthetic tripeptideLongevity categoryInjectionAdults 18+Yes
Questions, answered

MK-677 (Ibutamoren) FAQ

Is MK-677 a peptide?

No. Ibutamoren is a small-molecule compound that mimics the hormone ghrelin. It is listed with the peptides because it acts on the same growth-hormone axis.

Is it FDA-approved?

No. It was studied in clinical trials but never approved. It is a compounded preparation, not an FDA-approved medication, and compounded drugs are not reviewed by the FDA for safety or effectiveness. Individual results are not guaranteed.

Can it affect blood sugar?

Yes. Reduced insulin sensitivity was reported in trials. Tell your provider about diabetes or prediabetes.

Do I have to book an appointment?

No. You complete the questionnaire online and a licensed provider reviews it — there is no scheduling step and no waiting room.

Can I order more than one peptide?

Yes. Add each one to your cart and check out once. A provider reviews every treatment in your order.

Credibility you can verify

Care held to a higher standard

Licensed Providers

U.S. board-certified clinicians

503A Pharmacies

U.S.-based compounding partners

Most U.S. States

We confirm your state during intake

Explore more

Also in peptides

Capsules · Metabolic category

5-Amino-1MQ

An oral NNMT-inhibitor compound.

Learn more →
Injection · Metabolic category

AOD-9604

A fragment of human growth hormone.

Learn more →
Category

The Peptide Catalog

Every peptide we can dispense, each prescribed by a licensed provider and compounded by a 503A pharmacy.

Learn more →

Start with a real prescription

If you are going to take MK-677 (Ibutamoren), take one a licensed provider prescribed and a 503A pharmacy compounded with your name on it. Answer a few questions and a licensed provider reviews them.

Start your online visit →

  • Discreet, unmarked packaging
  • Refills so you never miss a dose
  • Labs guiding every adjustment
  • Licensed providers in most U.S. states
Medically reviewed

Sources & references

Medically reviewed by ForbiddenRx Medical Affairs — Independent, licensed medical providers · Last reviewed August 2026. This page was written and is periodically reviewed for medical accuracy in line with clinical guidance followed by the independent, licensed medical providers in the ForbiddenRx network. It is provided for general educational purposes and is not a substitute for professional medical advice, diagnosis, or treatment. Always talk with a licensed provider about your individual health.

  1. PubMed — ibutamoren (MK-677) in older adults, published trials.
  2. PubMed — MK-677 as an oral GH secretagogue, published literature.
  3. U.S. Food & Drug Administration. 503A Pharmacy Compounding — the regulatory basis for how this preparation is dispensed.
For further reading

Clinical references

This page is educational and is not medical advice.