The standard advice is to use vitamin C in the morning and copper peptides in the evening, then alternate copper peptides with retinol on different nights, or use them in the same evening routine with copper peptides applied first
Product benefit: Anti wrinkle
SLC7A5, also known as L-amino acid transporter 1(LAT1), functions differently [41]
Pathol Res Pract 260:155374
One board-certified dermatologist commented, GHK-Cu shows promising effects in tissue repair, but we need more controlled human trials
J Clin Investig 111(10):14971504 Myers VD, Tomar D, Madesh M, Wang J, Song J, Zhang XQ, Gupta MK, Tahrir FG, Gordon J, McClung JM, Kontos CD, Khalili K, Cheung JY, Feldman AM (2018) Haplo-insufficiency of Bcl2-associated athanogene 3 in mice results in progressive left ventricular dysfunction, -adrenergic insensitivity, and increased apoptosis