Because there is not enough high-quality human evidence to support routine clinical use and they are not currently approved for use in Humans by Health Canada or the FDA
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Unlike earlier generation growth hormone secretagogues such as GHRP-6 and GHRP-2, published research indicates that ipamorelin does not significantly stimulate appetite or elevate cortisol and aldosterone levels in animal models
Curr Pharm Des 20(7):11261135 Sikiric P, Seiwerth S, Rucman R et al (2016) Brain-gut axis and pentadecapeptide BPC 157
These anti-inflammatory studies established the immunomodulatory biology of MC1R activation as a significant pharmacological property of MT-1 beyond its pigmentary effects
Patel, if: Youre over the age of 25 and noticing fatigue setting in (remember, GSH levels start to decline around 25) Youre chronically fatigued Youre exercising less, or are exhausted after a workout Youre dealing with chronic stress To get the most bang from GSH supplements, incorporate healthy habits