So, I'm going to speculate a little bit
The GHK Peptide: An Update on its Regenerative and Health-Promoting Actions
Especially in PDLSC, Ex-4 has also proven to activate MAPK and WNT-signaling [19, 21, 24] as well as Hedgehog/Gli1-1 and nuclear factor kappa B (NF-B) signaling, thus promoting osteogenic differentiation [15, 17, 21, 24, 26, 38]
I do have patients on semaglutide, and some are noticing that their hair is thinner and more brittle and that the texture has changed while on the medication, says Anthony Rossi, MD, an assistant professor of dermatology at Weill Cornell Medical College
However, KFF notes that among this group 1.9 million also have diabetes and therefore are already eligible for coverage of weight-loss drugs like Wegovy or Zepbound