ipamorelin vs mk677 is mk677 ipamorelin MK-677 (Ibutamoren):

FEBS J (2016) 283:37894

Sermorelin or CJC-1295/Ipamorelin contributes growth hormone optimization, which supports skin, muscle, and connective tissue

doi: 10.3233/JAD-160346

[DOI] [PMC free article] [PubMed] [Google Scholar] 35.Cai D., Frantz J.D., Tawa N.E., Jr., Melendez P.A., Oh B.C., Lidov H.G., Hasselgren P.O., Frontera W.R., Lee J., Glass D.J., et al

I stopped metformin for the same sort of reason, more because I was worried the effect on mitochondria would make me feel less energetic

For researchers using oral capsules, taking the compound 30 to 60 minutes before meals in a fasted state may enhance fat oxidation effects, though this recommendation is based on theoretical considerations rather than controlled studies