GHK-Cu (glycyl-L-histidyl-L-lysine copper) is a naturally occurring tripeptide that reactivates miniaturized hair follicles through Wnt/beta-catenin signaling, the master switch for hair cycling (Pickart & Margolina, 2018)
Topical failures don't necessarily predict injectable failures, and vice versa
Mice pretreated with LASSS showed significantly reduced nitration compared with untreated animals, while GSSSG again showed no protective effect, confirming that LASSSs protective effect carries over from the lab
It's best to consult with a healthcare professional
Both are biologically plausible, and both have limited supportive human evidence
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