The index / Questions and answers
GHK-Cu questions, answered from the research record
The questions readers actually ask about the copper-peptide literature, each answered directly and cited where the answer is a number.
Definitions and mechanism
GHK-Cu raises a recurring set of questions about what it is, what it does, and where the evidence stops. The answers below are drawn from the published record, with every quantitative claim cited.
Skin, hair, and wound questions
The application-specific questions break down by tissue. Each answer points to the model and endpoint that produced it.
Safety, formulation, and cautions
The safety and formulation questions get direct, bounded answers — including the honest gaps in long-term human data.