[17] Due to its participation in the GH-IGF1 axis it contributes among other things to the maintenance of muscle strength, muscle mass, development of the skeleton and is a key factor in brain, eye and lung development during fetal development
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One practical consideration: higher-concentration solutions (2000mcg/mL or above) increase the risk of peptide aggregation during long-term storage, so unless your protocol specifically requires minimal injection volumes, a 1000mcg/mL concentration is the safer choice for multi-week studies
Berberine may also cause constipation and cramping, whilst L-carnitine can occasionally produce a fishy body odour or sleep disturbances
Forzano I, Varzideh F, Avvisato R, Jankauskas SS, Mone P, Santulli G