In cardiac models, Bock-Marquette et al., Nature 2004 reported that T4 activates integrin-linked kinase and Akt signalling, promoting cardiomyocyte survival, migration and improved function after coronary ligation in mice
First isolated in the 1970s, it was observed to have potent wound-healing and skin-regenerating properties
Higher-quality preparations with third-party purity testing range from $250-$400 monthly
For many research protocols, particularly those involving long-term observations or where ease of administration is a significant factor, an oral compound is often the first choice
If you happen to do this, you'd likely destroy the peptide or make it unstable, so if you're just looking for pure GHK (without the copper), you'd need to buy it that way from the start