For further information, you can read my article about thyroid medications
Fu Z, Sun H, Wu Y, Li C, Wang Y, Liu Y
However, it is also meant to help with sleeping, and I did get great sleep while taking the supplement
The amount of copper in most copper peptide serums is low enough that it shouldnt pose a major risk to most healthy people, but its still something to be mindful of.15 However, those with Wilsons disease a rare genetic condition may be best off avoiding copper peptide serums (or any skin care product containing copper), as the condition causes the element to build up in the body.16 Cancer risks GHK-Cu seemingly promotes angiogenesis, or the formation of new blood vessels.14 Though this can lead to beneficial outcomes like better wound healing, it may also lead to the growth or spread of cancer by giving solid tumors a blood supply.17 This means that if you have active or suspected cancer, it may be wise to avoid copper peptides
Skalny AV, Aschner M, Jiang Y, Gluhcheva YG, Tizabi Y, Lobinski R, Tinkov AA (2021) Chapter one: molecular mechanisms of aluminum neurotoxicityUpdate on adverse effects and therapeutic strategies
