GHK-Cu and Perimenopause: What the Evidence Actually Shows About the Copper Peptide for Skin, Hair, and Collagen Written and edited by Sarah Bonza, MD, MPH, FAAFP, MSCP, DipABLM, NBC-HWC A patient came into my office a few months ago, opened a folder on her phone, and showed me a long list of skincare products she had been cycling through for the past two years
GHK-Cu cycling: on/off schedules that actually work Continuous year-round dosing is almost never needed
Homeoprotein signaling in the developing and adult nervous system
4 Supplementation with GSH or cysteinylglycine rescues cancer cells in cystine-free conditions
~15 to 20 mmHg in some studies Cardioprotection data / Reduced infarct size and improved ejection fraction in rodent ischemia-reperfusion models Human RCT data / Zero completed cardiovascular-specific RCTs as of January 2025 Typical compounded dose range / 250 to 500 mcg/day subcutaneous or oral