Ibutamoren (MK-677) vs Ipamorelin
Ibutamoren (MK-677): Oral growth hormone secretagogue (small molecule). Ipamorelin: Selective growth-hormone secretagogue. Per milligram, Ibutamoren (MK-677) is cheaper right now (USD 0.113 vs USD 0.500 at the cheapest tested vendor). Prices per mg compare cost, not effect: the amounts used in studies differ between compounds.
Ibutamoren (MK-677)
A non-peptide ghrelin-receptor agonist that raises GH and IGF-1 levels for 24 hours after an oral dose; studied for muscle wasting and GH deficiency, with increased appetite and blood sugar as side effects.
- What it is
- Oral growth hormone secretagogue (small molecule)
- Category
- Growth hormone
- Status
- Never approved; research chemical only.
- Cheapest
- USD 0.113 per mg (Simple Peptide)
- Median price
- USD 1.12 per mg
- Vendors
- 2 independently tested, 1 with a lab report
- Research
- Not reviewed
Ipamorelin
A five-amino-acid ghrelin-receptor agonist that triggers a growth-hormone pulse with little effect on cortisol or prolactin in studies.
- What it is
- Selective growth-hormone secretagogue
- Category
- Growth hormone
- Status
- Not approved. Research use only; prohibited in sport.
- Cheapest
- USD 0.500 per mg (Nantong Guangyuan Chemical GYC)
- Median price
- USD 4.05 per mg
- Vendors
- 78 independently tested, 20 with a lab report
- Research
- Grade B: Some human evidence (8 papers)
- Studied as
- studied in people
Cheapest tested vendors for Ibutamoren (MK-677) and Ipamorelin
Lowest price per milligram at up to three independently tested vendors each. Rankings are by price only; open a vendor to see its lab results.
| Peptide | Vendor | Per mg |
|---|---|---|
| Ibutamoren (MK-677) | Simple Peptide | USD 0.113 |
| Peptides Book | USD 1.12 | |
| Ipamorelin | Nantong Guangyuan Chemical GYC | USD 0.500 |
| Mix Peptides | USD 0.700 | |
| BFF Chem | USD 0.750 |
Questions people ask
What is the difference between Ibutamoren (MK-677) and Ipamorelin?
Ibutamoren (MK-677): Oral growth hormone secretagogue (small molecule). Ipamorelin: Selective growth-hormone secretagogue. Per milligram, Ibutamoren (MK-677) is cheaper right now (USD 0.113 vs USD 0.500 at the cheapest tested vendor). Prices per mg compare cost, not effect: the amounts used in studies differ between compounds.
Which is cheaper, Ibutamoren (MK-677) or Ipamorelin?
Ibutamoren (MK-677) is cheaper per mg: USD 0.113 for Ibutamoren (MK-677) vs USD 0.500 for Ipamorelin at the cheapest independently tested vendor. The median listing is USD 1.12 per mg for Ibutamoren (MK-677) and USD 4.05 per mg for Ipamorelin.
Which is easier to find from a tested vendor, Ibutamoren (MK-677) or Ipamorelin?
Ipamorelin is sold by more independently tested vendors: 2 list Ibutamoren (MK-677) (1 publish a lab report for it) and 78 list Ipamorelin (20 with a lab report).
Are Ibutamoren (MK-677) and Ipamorelin FDA approved?
Ibutamoren (MK-677): Never approved; research chemical only. Ipamorelin: Not approved. Research use only; prohibited in sport.