Symptoms can include: Muscle weakness or cramping Irregular heartbeat Unusual tiredness
Inflammation Research, 60 (1), 79-86
Although GHK-Cu peptide is commonly sold as an injectable solution for research purposes, the compound is included in a variety of topical skincare formulations, which are marketed as anti-aging products and available to the general public
Practical considerations for researchers Beyond the clinical data, practical factors influence which compound works better in real-world research settings
More than 60 FDA-approved peptide medications are currently available, including insulin, which has been in use since the 1920s
Adding a second peptide without understanding how the mechanisms overlap or compound side effects is how people end up with an intolerable protocol they can't troubleshoot