research Hydrogel microneedle delivery of a palmitoylated peptide promotes hair regeneration via dual activation of Wnt/β-catenin and cAMP–PKA signaling
This study found that using a palmitoylated peptide, Pal-MPAPO, delivered through hydrogel microneedles effectively promoted hair regrowth in mice with efficacy comparable to minoxidil, while requiring less frequent application.

