Dr Dan Reardon, a UK A&E physician who sees peptide-related cases in emergency departments, frames it as a basic-rigour problem
Results vary by peptide type and individual factors, but most patients notice improvements within 2-4 weeks: Immediate (1-7 days): Increased energy, better sleep, improved mood Short-term (2-4 weeks): Enhanced recovery, reduced pain, metabolic improvements Medium-term (1-3 months): Visible body composition changes, significant performance gains Long-term (3-6 months): Full loading period complete, optimal benefits achieved, transition to maintenance protocol Is Peptide Therapy Safe
This translates to approximately 1.6 to 4 mcg per kilogram of body weight, extrapolated from effective rat doses using standard interspecies scaling factors
Tripeptide Wound Healing & ECM Remodelling Review (Med Sci, 2025) A comprehensive 2025 review of tripeptides in wound healing and skin regeneration confirmed GHK-Cu as the most studied tripeptide in the context of wound repair and scar minimisation
