Tretinoin is one of the most powerful retinoids for treating acne, sun damage, or fine lines - among many other skin concerns
From the PLU blog Is GHK-Cu Safe
BUYING & USAGE GUIDE Buy GHK-Cu from a brand that clearly shows the product form, intended use, directions, supply length, active amount or concentration where applicable, lab testing, support information, and Certificate of Analysis access
AHK-Cu is a synthetic variant with research focused primarily on hair follicle applications
IN SILICO ANALYSIS FOR CHARACTERIZING THE STRUCTURE AND BINDING PROPERTIES OF ALA-HIS-LYS (AHK) TRIPEPTIDE
Start slowly, patch test when trying a new topical product, and avoid applying copper peptide products to irritated or broken skin