The GHK-CU dosage guide provides detailed protocols, but here's a troubleshooting framework
Best used by: Those whose dark circles have a brownish pigmentation component that conventional eye brighteners have not adequately addressed, and anyone whose discolouration around the eyes combines both pigmentation and vascular elements and needs a single formula addressing both
Filion, L.G., Graziani-Bowering, G., Matusevicius, D
Precise Dosing : IV therapy allows for exact dosing based on your individual needs and liver function status
doi:10.1007/s00449-009-0361-6 Li Z, Ye Q, Li W, Zhang S (2014) Method for producing glutathione by fermentation of recombinant Escherichia coli
Week 3+ : Increase to 300-500 mcg if needed 4