topical or injectable.ghk cu GHK-Cu Spray GHK-Cu Peptide | The benefits,

While its ability to influence multiple pathways of repair is supported by compelling preclinical data, the absence of high-quality human trials, the FDAs strict regulatory stance, and the risk of contamination from unregulated sources raise serious safety and legal concerns (including malpractice concerns and fines)

Vials stored in clear containers under fluorescent or natural light can lose 2030% potency within 72 hours regardless of refrigeration

However, the peptide had minimal side effects in mice.

No surprise, this has gotten the FDAs attention

This hinted at the possibility of the peptide having preventive or protective potential against the immediate consequences of traumatic brain injury in experimental models