Observed responses in research settings are generally reported as mild and may include: Temporary injection-site irritation Redness or warmth sensations Skin-sensitivity variability Temporary blue-tinted discoloration beneath the administration area Localized irritation depending on dosage range, concentration, administration frequency, protocol duration, and individual sensitivity Research protocols commonly investigate daily administration ranges between: 12mg daily in standard research settings Up to 3mg daily in more advanced experimental protocols GHK-Cu is frequently explored in continuous or maintenance-style research structures and does not always require strict cycling protocols in moderate-dose experimental models
doi:10.1038/sj.ijir.3900582
GLP-1s should be used with a reduced-calorie meal plan and increased physical activity
Skin and Dermal Model Use: Research includes fibroblast migration, keratinocyte activity, integrin expression, and dermal matrix organization in controlled systems
And, of course, safety is important as more and more indications to use this group of medications arise
see the GHK-Cu protocol guide for the full evidence picture