GHK-Cu works through multiple pathways
There are no safety studies, even in animals. I pushed back on this myself
Kolenc, M.Coric, L

Try: Vagal nerve stimulation (gargling, humming, cold exposure) Breathwork and HRV training EMDR or somatic therapy Gentle movement (yoga, stretching) Low-dose naltrexone (LDN) under physician guidance Medications Often Used for MCAS While functional medicine focuses on the root cause, medications may be helpful short-term or during flares: H1 blockers : loratadine, cetirizine, hydroxyzine H2 blockers : famotidine, ranitidine Mast cell stabilizers : cromolyn sodium, ketotifen Leukotriene inhibitors : montelukast Aspirin (in salicylate-tolerant individuals): blocks prostaglandins LDN (Low-Dose Naltrexone) : modulates immune response Living with MCAS: Practical Tips Keep a symptom diary to track flares and exposures Store and consume fresh food histamine builds up in leftovers Use HEPA filters in home and bedroom Avoid scented products and chemical cleaners Communicate MCAS with medical providersespecially before surgery or dental work Build a flare kit (antihistamines, electrolytes, DAO, KPV, Cromolyn) Final Thoughts Mast Cell Activation Syndrome is complexbut not impossible to treat

GHK-Cu is widely used in regenerative medicine, functional medicine, longevity, sports recovery, and hair health protocols due to its ability to activate genes associated with cell repair and the production of structural proteins