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№ 011

MK-677 (Ibutamoren)

Oral ghrelin mimetic. Bumps GH and IGF-1 without injections. Strong appetite stimulation is the trade-off.

GH-axis
Half-life
~24 hours
Route
Oral
Cycle
8-12 weeks on, 4 weeks off
Schedule
Once daily
In plain English

MK-677 is the only oral GH-axis compound that actually works. It tricks your body into thinking it's hungry, which signals more GH release. Big appetite increase is the trade-off — great in a bulk, awful in a cut.

Status & legality
Natty?
Not natty
FDA
Not approved

Not FDA approved. Reached Phase 2 trials, never approved.

WADA
Banned (S2)
Prescribed

Not prescribed in conventional medicine. Sometimes offered by anti-aging clinics off-label.

Who it's for

  • →Users who want GH benefits but won't inject
  • →People in a bulking / mass-gain phase
  • →Sleep-quality focused stacks

What to expect

  1. Week 1

    Sharp appetite increase. Vivid dreams, deeper sleep.

  2. Week 4

    Visible water retention, slight bloat. IGF-1 climbing.

  3. Week 8

    Recovery and body comp shifts in users training hard.

Dosing protocol

10-25 mg orally, once daily, taken before bed.

Stacks well with

Standalone
Pairs with GH secretagogue stacks (Ipamorelin/CJC) for amplified IGF-1

Side effects

01Aggressive appetite stimulation
02Water retention / bloat
03Numb/tingling hands (carpal-tunnel-like)
04Insulin resistance creeping up over long use
05Lethargy at higher doses

When NOT to use

  • ⚠Active malignancy
  • ⚠Pre-diabetic or insulin-resistant baseline
  • ⚠Pregnancy / nursing

Bloodwork to monitor

  • • IGF-1 baseline + week 8
  • • Fasting glucose / insulin every 8 weeks

Common mistakes

  • • Running it during a cut (the appetite makes the cut nearly impossible)
  • • Stacking with anything that raises insulin resistance further
  • • Skipping cycle breaks

Educational only. User-specific dosing is between you and a qualified provider.

Frequently asked

What is MK-677 (Ibutamoren)?+
MK-677 is the only oral GH-axis compound that actually works. It tricks your body into thinking it's hungry, which signals more GH release. Big appetite increase is the trade-off — great in a bulk, awful in a cut.
Is MK-677 (Ibutamoren) FDA approved?+
Not FDA approved. Reached Phase 2 trials, never approved.
Is MK-677 (Ibutamoren) banned by WADA?+
MK-677 (Ibutamoren) is on the WADA prohibited list under Banned (S2).
Are you still natty after taking MK-677 (Ibutamoren)?+
No. MK-677 (Ibutamoren) is a performance-enhancing peptide and would disqualify a strict natty claim.
Do doctors prescribe MK-677 (Ibutamoren)?+
Not prescribed in conventional medicine. Sometimes offered by anti-aging clinics off-label.
What's the typical dose of MK-677 (Ibutamoren)?+
10-25 mg orally, once daily, taken before bed.
What are the side effects of MK-677 (Ibutamoren)?+
Common side effects include: Aggressive appetite stimulation; Water retention / bloat; Numb/tingling hands (carpal-tunnel-like); Insulin resistance creeping up over long use. Less common effects and full safety details are on the entry page.
How long until MK-677 (Ibutamoren) starts working?+
Sharp appetite increase. Vivid dreams, deeper sleep.