31 citations
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August 2005 in “The American Journal of Dermatopathology”
The study concluded that PKP1 is essential for skin integrity and hair growth, and its dysfunction causes the symptoms of ectodermal dysplasia/skin fragility syndrome.
Applying Epidermal Growth Factor (EGF) topically may improve skin and potentially promote scalp health and hair growth, especially after microneedling. The user shares their positive experience with EGF and provides a product link.