MK-677 (Ibutamoren)
Also known as Ibutamoren
An oral, needle-free way to raise GH and IGF-1 around the clock.
Clinical evidenceOverview
At a glance
Combining
Avoid combining with: Sermorelin, Ipamorelin, CJC-1295 (no DAC), MK-677 (Ibutamoren)
Safety
Water retention, increased appetite, can raise blood sugar.
Regulatory: Research compound; not FDA-approved.
Not appropriate if: cancer-history.
Questions
Is MK-677 a peptide?⌄
It's not a peptide in the traditional sense - it's a small-molecule ghrelin-receptor agonist that mimics ghrelin's effect on GH and IGF-1 secretion. It behaves similarly to injectable GH secretagogues but is taken orally.
How is MK-677 taken?⌄
As an oral dose of 10-25 mg once daily, before bed. Exact dose is set at your PepDepo consult.
What are the side effects I should know about?⌄
Water retention, increased appetite, and potential blood sugar elevation are the main ones. These are manageable but worth discussing at consult, especially if you have any baseline metabolic concerns.
Who should not take MK-677?⌄
Anyone with a cancer history. GH-axis stimulation is contraindicated in that population.
Can I combine MK-677 with ipamorelin or sermorelin?⌄
No. MK-677 should not be combined with injectable GH secretagogues like ipamorelin, sermorelin, or CJC-1295. Running them together is not appropriate.
Is MK-677 FDA-approved?⌄
No. It is classified as a research compound in the US. It has been studied in clinical trials but has not received FDA approval.
How long is a typical course?⌄
Eight to sixteen weeks. The right duration depends on your goals and response, and is set at consult.
Why take it before bed?⌄
Bedtime aligns the GH and IGF-1 pulse with the overnight window when natural GH secretion is highest. It also helps manage appetite increase and potential sleep changes during hours you're asleep.
Want a personalized protocol?
Exact dosing is set with a licensed provider in the PepDepo network. This page is education, not a prescription.
Book a consultEducation only, not medical advice. Peptides discussed are for informational purposes and many are not FDA-approved. Eligibility, prescribing, compounding, and dispensing are handled by appropriately licensed entities. Exact protocols and dosing are set with a licensed provider in the PepDepo network at consult. Content is pending clinical review.