Nucleus Research Compounds
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MK-677 research vial

Secretagogues

MK-677 (Ibutamoren)

Lyophilized research compound. Purity ≥99.2% by RP-HPLC, identity confirmed by mass spectrometry. Store at −20 °C, desiccated. For in-vitro laboratory research use only — not for human or veterinary consumption.

€84
Purity (HPLC)99.2%
Fill size25 mg
Endotoxin (LAL)<0.05 EU/mg
AppearanceWhite lyophilized
Storage−20 °C · desiccated
AvailabilityIn stock

Research use only · not for human or veterinary consumption

Verified orders

What researchers say

4.8 / 5 average
“Third order from Nucleus and every vial arrived cold-packed with the COA matching the lot number on the label. Weighing on my milligram scale, amounts have been spot on.”
Marcus T.Retatrutide · September 2026
“What sold me was being able to open the Janoshik report right on the product page before buying. Shipping was two days and the vials were sealed properly.”
Dana R.BPC-157 · September 2026
“Clean site, honest lab data, no hype claims. Would like more bundle options, but the peptides themselves test exactly as listed.”
Kwame O.TB-500 · August 2026
“Recommended. Fast shipping, and delivery times were fully in line with the estimated window. Packaging was solid — even with a less-than-careful courier, everything arrived intact with no damage. On top of that, the COA certificates and test results were included. Fully recommended.”
Verified buyerPeptide order · October 2026
“TOP!! Everything 5+ The delivery arrived as agreed, was well packaged, and everything was in perfect condition. Shipping was very fast, and communication was always prompt and reliable.”
Verified buyerPeptide order · October 2026
“First order, will order again. Just had my first order and can't complain. Delivery was fast. They have certificates for selected products. So far so good.”
Verified buyerPeptide order · October 2026