does ghk-cu inhibit dht for Hair Growth: What the Evidence Actually Shows GHK-Cu for Skin & Wound

Another reading suggests that broad gene-expression effects can reflect secondary consequences (changes in cell state, in proliferation rate, in metabolism) rather than direct mechanism-based effects, and that the specificity of the transcriptomic findings should be interpreted with caution

For gut-wall local effects (ulcer healing, intestinal permeability), the peptide does not need to cross the gut epithelium into systemic circulation

For a deeper treatment, leave on for up to 15 minutes before rinsing

Pentadecapeptide BPC 157 interactions with adrenergic and dopaminergic systems

[10] McCarty MF, OKeefe JH, DiNicolantonio JJ