Pickart, Journal Of Biomaterial Sciences Legal Status of GHK-Cu Peptide GHK-Cu is classified as a cosmetic ingredient when included in topical formulations such as serums, creams, and scalp solutions
The mass spectrometry proteomics data have been deposited to the ProteomeXchange Consortium ( via the iProX partner repository with the dataset identifier, PXD056923 65,66

This may include instances where: You need a stronger product to achieve your goals (e.g., deep hyperpigmentation, severe acne, etc.) You already use another product containing copper (this could be unsafe) An essential part of your skin care routine is a harsh active, vitamin C, strong exfoliant, or salicylic acid many of which are common ingredients in acne treatments and anti-aging products (copper peptides shouldnt be mixed with them) Using copper peptides may be unsafe (i.e., you have Wilsons disease, a peptide allergy, or active/suspected cancer) Youve tried a copper peptide product in the past and experienced an adverse reaction (e.g., copper uglies or troublesome side effects) If youd like some alternatives to copper peptides, we go over a few in the Alternatives to copper peptide serums section later in this guide
When recovering from toxin exposures, nutrients, such as glutathione, become depleted and the body may have increased needs in order to promote detoxification
Its not treating blood sugar