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MK-677 (Ibutamoren) - 40 mg/ml - 30ml Total

MK-677 (Ibutamoren) - 40 mg/ml - 30ml Total

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MK-677, also known as Ibutamoren and Oratrope, is an orally active, selective agonist of the ghrelin receptor. Research has shown that MK-677 increases the secretion of growth hormone (GH) and insulin-like growth factor 1 (IGF-1), but does not affect cortisol levels. It is being researched as a possible treatment for growth hormone deficiency, muscle and bone wasting, appetite stimulation and Alzheimer's disease. MK-677 research in mice, appeared to prevent the onset of Alzheimer's disease, even in genetically predisposed mice, as long as it was started before significant amyloid beta accumulation. MK-677 research has also shown exceptionally promising benefits in improving sleep quality.


  • Chemical Formula: C27H36N4O5S
  • Molecular Mass: 624.8
  • Synonyms: Ibutamoren mesylate, 159752-10-0, Ibutamoren mesylate, Crescendo
  • Molar Mass: 528.67
  • CAS Number: 159752-10-0
  • PubChem: 178024
  • Total Amount of the Active Ingredient: 40mg/30 ml
  • Shelf Life: 36 months

Product Quality

Lab tests are occasionally published on the website.

You can have the product you bought from us tested at any HPLC licensed testing facility and if the results are negative, we will refund the following:

  • Cost of HPLC test
  • Total amount of the order + shipping fee

Peer-Reviewed Studies 

Svensson, J., Lonn, L., Jansson, J. O., Murphy, G., Wyss, D., Krupa, D., ... & Bengtsson, B. A. (1998)

The Journal of Clinical Endocrinology & Metabolism83(2), 362-369.

Murphy, M. G., Plunkett, L. M., Gertz, B. J., He, W., Wittreich, J., Polvino, W. M., & Clemmons, D. R. (1998)

The Journal of Clinical Endocrinology & Metabolism83(2), 320-325.


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The information provided above is not intended to substitute medical advice, diagnosis, or treatment. Should you have any questions regarding a medical condition, seek the advice of your physician or a qualified healthcare provider. In no case should medical advice be disregarded or delayed because of what you have read or seen. We bear no responsibility or liability for your use of any of our research compounds and products. Please note that they are being sold for research purposes ONLY. We do NOT condone any personal use.

NOTE: In some cases wherein the assigned top colors are out of stock, a different top color will be used to ensure that your order will not be delayed. Should you need assistance identifying the peptide vial that you received, please send us an email at or by chatting with us

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Purity Testing Updated Periodically

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