The concept of "normal" is based on the middle 95% of results, fitting within a typical bell-shaped curve
doi: 10.1136/ard.2003.017566 107 StankovicASlavicVStamenkovicBKamenovBBojanovicMMitrovicDR
And there, there, as you know, there are reasons to do both
GHK-Cu peptide has been researched for its potential across a variety of functions (1) including that it may tighten and reverse the thinning of aging skin structure, supporting the extracellular matrix, that it may restore the skin barrier and moderate texture, hyperpigmentation and lesions, may support tissue repair and mitigate inflammation, may stimulate increasing hair follicle size, may exert antioxidant properties and, finally, may exhibit gene restructuring potential.
It was filling, easy on some days, unpleasant when mixed poorly, and nowhere near the dramatic male performance claims attached to it