ghk cu pharmacokinetics half life Frontiers WO2019167070A1 - Topical copper tripeptide
Description
Exact same thing happened to me

The peptides used in supervised settings are studied for helping soft tissue heal, supporting connective tissue, easing recovery between hard sessions, and in some cases supporting body composition and sleep quality

Like most small peptides, it is more stable dry than in solution
If you are taking metformin, your healthcare provider may recommend additional vitamin B-12 supplementation, especially if you are on a high dose of metformin or if you have other risk factors for vitamin B-12 deficiency

Prevalence and Risk Factors for Functional Vitamin B 12 Deficiency in Patients with Crohns Disease: Inflamm Bowel Dis

It is stored in the liver and is necessary for appetite, energy maintenance, production and growth
