Home › Compare › 5-Amino-1MQ vs MK-677 (Ibutamoren)
5-Amino-1MQ vs MK-677 (Ibutamoren)
5-Amino-1MQ sits in muscle / growth, while MK-677 (Ibutamoren) sits in growth hormone — so despite being mentioned together they are used for different things. A mixed vial also keeps differently: about 30 days for 5-Amino-1MQ against 60 for MK-677 (Ibutamoren). The table below sets out the differences. We give no dosing guidance.
Side by side, in plain English — what each one is, where they overlap and where they genuinely differ.
5-Amino-1MQMuscle / Growth
MK-677 (Ibutamoren)Growth HormoneAt a glance
| 5-Amino-1MQ | MK-677 (Ibutamoren) | |
|---|---|---|
| Category | Muscle / Growth | Growth Hormone |
| Typical route | Oral or SubQ | Oral |
| Shelf life once mixed | ~30 days | ~60 days |
| Commonly reported effects | Preserves lean mass Enhances fat oxidation Metabolic flexibility Anti-obesity | Sustained GH/IGF-1 elevation Appetite increase Deeper sleep |
| Reported considerations | Mild GI upset Rare headache | Water retention Lethargy Insulin resistance |
The differences that actually matter
They aren't really substitutes: 5-Amino-1MQ sits in Muscle / Growth while MK-677 (Ibutamoren) sits in Growth Hormone. People usually pick between them because of a shared secondary effect rather than because they do the same job.
Route of administration differs — 5-Amino-1MQ is typically oral or subq, MK-677 (Ibutamoren) is typically oral. That alone changes how convenient each one is to keep up with.
Once reconstituted, MK-677 (Ibutamoren) keeps noticeably longer than 5-Amino-1MQ (~60 days vs ~30 days), so vial waste is a real difference between the two.
Reported mainly for 5-Amino-1MQ: preserves lean mass, enhances fat oxidation, metabolic flexibility.
Reported mainly for MK-677 (Ibutamoren): sustained gh/igf-1 elevation, appetite increase, deeper sleep.
What 5-Amino-1MQ is
5-Amino-1MQ operates as a selective, small molecule inhibitor of the nicotinamide N-methyltransferase (NNMT) enzyme. The NNMT enzyme plays a role in cellular metabolism by methylating nicotinamide, thereby depleting S-adenosylmethionine (SAM) levels, which are critical universal methyl donors. By inhibiting NNMT, 5-Amino-1MQ aims to prevent this depletion, consequently increasing the intracellular availability of SAM. This increase in SAM levels is proposed to reallocate methyl donors for various metabolic pathways
What MK-677 (Ibutamoren) is
MK-677, also known as Ibutamoren, functions as a non-peptide ghrelin receptor agonist, specifically targeting the growth hormone secretagogue receptor type 1a (GHSR-1a). By mimicking the action of endogenous ghrelin, it stimulates the pituitary gland to increase the pulsatile secretion of growth hormone (GH). This mechanism leads to sustained elevations of both GH and insulin-like growth factor 1 (IGF-1) levels in the body, typically over a 24-hour period due to its approximate 24-hour half-life. It operates by enh
How to compare them for yourself
Anecdotes online are noisy because nobody is measuring the same thing. The only comparison that means anything is your own: log each entry with a timestamp, keep the vial ledger honest so you know what you actually got through, pick two or three metrics before you start, and look at the trend after several weeks rather than day to day.
Peptide Wizard does that part for you — 5-Amino-1MQ and MK-677 (Ibutamoren) are both in the built-in reference library with a 3D vial, and your history, vial ledger and cost per entry stay private on your device.
FAQ
What is the difference between 5-Amino-1MQ and MK-677 (Ibutamoren)?
They aren't really substitutes: 5-Amino-1MQ sits in Muscle / Growth while MK-677 (Ibutamoren) sits in Growth Hormone. People usually pick between them because of a shared secondary effect rather than because they do the same job.
Can you log 5-Amino-1MQ and MK-677 (Ibutamoren) in the same period?
Plenty of people record more than one peptide at a time. Peptide Wizard keeps a separate vial ledger and entry history for each, so you can see exactly what overlapped and when — it does not recommend combinations or doses.
Which is better, 5-Amino-1MQ or MK-677 (Ibutamoren)?
There isn't a universal answer — reported responses vary a lot between individuals, which is why your own log is more informative than anyone else's anecdote. Track one variable at a time and compare your own metrics over several weeks.
Is this medical advice?
No. This page is educational reference material only. It contains no dosing guidance. Speak to a qualified healthcare professional before making any decisions.
See all peptide comparisons →
Educational reference only. This page contains no dosing guidance and is not medical advice.