However, some mild side effects may occur, especially during the adjustment period or at higher doses: Headaches Temporary injection site irritation Lightheadedness Water retention (in rare cases) Mild tingling or numbness (from elevated IGF-1) Ipamorelin induced growth hormone release without elevating cortisol or ACTH levels, suggesting minimal off-target effects. Raun et al., European Journal of Endocrinology Compared to Other Peptides Unlike GHRP6 , which often causes intense hunger and spikes in prolactin , or GHRP2 , which can increase cortisol , Ipamorelin is more targeted and stable
Most peptides degrade in the digestive system, making injectable administration standard
But here is the critical caveat
Without a calculator, dosing errors are one of the most common mistakes researchers make, especially when switching between different vial sizes or concentrations
Tissue adaptation following injury