Instead of DIY, look for reputable, third-party tested serums that list GHK-Cu (or copper tripeptide) and supportive ingredients like hyaluronic acid, antioxidants (vitamin C), and soothing agents (aloe vera)
Human growth hormone (HGH), also known as somatotropin or simply growth hormone, is a naturally occurring protein that your body produces to orchestrate growth, cell repair, and metabolism
It touches several systems at once, which is probably why the feedback around it feels unusually broad skin, scalp, wounds, inflammation, even nerve-related research
Systemic reactions may include gastrointestinal disturbances (nausea, diarrhea, abdominal cramps) when large doses are administered intravenously