Ipamorelin acts on the GHS-R1a receptor to stimulate pulsatile GH release
previous work indicated that 24 weeks of CGM data provide a good approximation of long-term glucose metrics 42,43

One day early vs two days early: where the risk threshold sits The safety calculation changes as you move further from your scheduled day: One day early (day 6 of 7): Blood level difference: approximately 7% higher than intended trough Side effect risk: minimal increase Efficacy impact: none Clinical recommendation: safe for one-time adjustment Two days early (day 5 of 7): Blood level difference: approximately 15% higher than intended trough Side effect risk: modest increase, especially if you're already experiencing nausea Efficacy impact: none Clinical recommendation: acceptable if unavoidable (travel, medical procedure), but not ideal for routine adjustment Three or more days early (day 4 or earlier): Blood level difference: 25%+ higher than intended trough Side effect risk: significant increase in nausea, vomiting, diarrhea Efficacy impact: none, but tolerability suffers Clinical recommendation: contact your provider before dosing The threshold between "safe" and "risky" sits between days 5 and 4

At day 21, participants taking oxaloacetate experienced statistically significant improvement in fatigue as measured by the DePaul Symptom Questionnaire Short Form (DSQ-SF)
Thats an orthopedic finding, about a different kind of surgery entirely, but its evidence this timing question is still being studied rather than closed