use l carnitine and softgel topically coq10 L-Carnitine & Supplements Patrick Holford CoQ10 Plus Carnitine

Kolahi, Z., Yaghoubi, A., Rezaeian, N

Watch for Signs of Copper Toxicity While GHK-Cu is generally well tolerated, overexposure to copper (especially in individuals with impaired detox pathways) can cause symptoms such as: Nausea or gastrointestinal upset Headaches Mood swings or irritability Metallic taste in the mouth If any of these symptoms occur, discontinue use and contact your healthcare provider

In other neurodegenerative diseasessuch as epilepsy, stroke, and brain traumaa rapid rise in the levels of extracellular glutamic acid can cause severe neuronal damage

PMID: 25906193

A small amount of soreness is normal, but if you notice significant irritation, contact your healthcare provider

Griffiths B, Lewis CA, Bensaad K, Ros S, Zhang Q, Ferber EC, et al