Common symptoms include gastrointestinal issues such as nausea, constipation, diarrhea and heartburn
While the mechanism is well-characterized and the animal results are impressive, human dosing protocols are based on extrapolation rather than controlled clinical evidence
However, in a controversial study, CHAC1 was identified as a uniquely downregulated gene in rhabdomyosarcoma (RMS) tumors treated with the combination therapy of low-dose vincristine (VCR) and FOXM1 inhibitor RCM1, delivered via nanoparticles
UK researchers interested in these angles should note that GHK-Cus gene-regulatory breadth makes it a viable candidate for investigational use beyond cosmetic applications, though human trial data remain limited outside dermatology
We suggest starting with a 1,000 mcg dose given weekly
He also suggests considering customized plans that may consist of bespoke skin care, chemical peels, microneedling and or laser therapy or other treatments available at his practice