The NHS and NICE do not currently provide guidance on the use of research peptides outside of clinical trials, and this absence of guidance itself reflects the lack of established safety and efficacy data for these compounds in routine clinical practice
To put that in perspective, the best semaglutide clinical trials showed approximately 15-17% weight reduction, and tirzepatide results peaked around 20-22%
GHK-Cu is a structural repair peptide it modulates gene expression to stimulate collagen and elastin synthesis, supports wound healing, and promotes hair follicle regeneration
liposomal study, blood glutathione levels increased within one week , with peak increases at two weeks
Some providers may periodically measure basic labs (like liver/kidney function or copper levels) during extended treatment, especially if higher doses are used
Patients often schedule peptide therapy to overlap with a 3- or 6-visit microneedling series