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Study · Not a test of the peptide alone · 2021

1 result

Development and validation of liquid chromatography-tandem mass spectrometry method for screening six selective androgen receptor modulators in dietary supplements.

Lee JH, Han JH, Jung EJ, Nallapaneni HK, Kim NS, Kim H, Lee J, Baek SY

Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment1 May 2021Cited by 4 (Europe PMC)

PMID33934684 (opens in a new tab)DOI10.1080/19440049.2021.1906954 (opens in a new tab)PepBankPUB-33934684
Publisher pagePubMedAsk about this study
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Summary

The text of this summary is not shown here, because the article license does not allow reuse. Read it at the source (opens in a new tab)

Text rights: Publisher copyright. Results still quote short attributed sentences.

Results from this study1

No result from this study comes from a test of the peptide.

Studies that did not test the peptide alone1

In this study, MK-677 (ibutamoren) was a lab tool or a carrier, part of a mix, or the subject of a lab method. These results are not evidence about taking MK-677 (ibutamoren).

  1. 01LabNot a test of MK-677 (ibutamoren) aloneIn vitro (cell-free)Other

    In dietary supplement screening, researchers detected MK‑677 in some products without label disclosure.

    In plain wordsIn lab tests, some supplements contained MK‑677 that their labels did not disclose.

    Peptide
    MK-677 (ibutamoren)
    Outcome
    Not applicableUndeclared MK-677 in supplements
    Study

    n: not reported in source

    Outcome group
    Analytical methods and detection · Pharmacology

    Source sentences

    Summary
    Furthermore, MK-677 and YK-11, not disclosed on the label, were detected in some products.
    1 context sentence
    Summary · context
    The validated method was applied to 60 dietary supplements obtained by on-line and direct purchase from international vendors in 2020.

    In this study, MK-677 (ibutamoren) was a lab tool or a carrier, part of a mix, or the subject of a lab method. This result is not evidence about taking MK-677 (ibutamoren).

AI wrote and checked these results. AI can make mistakes, so check important results against the source.

Version history

PepBank keeps every version of the data on this study. Status changes from Retraction Watch, Europe PMC and Crossref are listed with their source.

  1. Version 2Current

    14 Oct 2026, 05:02 UTC

    Study results updated

  2. Version 1

    14 Oct 2026, 01:46 UTC

    First added · source update from Europe PMC

Subjects

Terms as the source lists them.

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