+ Yes, completely free
However, sustained stress ultimately promotes inflammation and apoptosis (108, 175)
Cronkhite-Canada syndrome: Cronkhite-Canada syndrome is a nonhereditary condition characterized by cutaneous hyperpigmentation, alopecia, onychodystrophy, and diffuse gastrointestinal polyposis associated with diarrhea, abdominal pain, and proteinlosing enteropathy and malnutrition[106]
PMID: 14988435 Wu G, et al
That is a mechanistically attractive claim, and the pathway itself is unquestionably central to hair biology but the strength of the direct evidence tying GHK-Cu specifically to Wnt activation in human follicles is weaker than the confident phrasing online implies, and much of it is filtered through commercial rather than primary literature
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