In intact skin without a penetration enhancer (such as ethosomes, liposomes, or hyaluronic acid conjugation), multiple ex vivo tape-stripping studies show that most topically applied GHK-Cu accumulates in the stratum corneum and upper viable epidermis, not in the dermis where fibroblasts live
Unlike some supplements, it possesses scientific backing for its use in enhancing sexual performance and erection quality 2 3
Form of Administration : Oral BPC-157 acts locally on the gastrointestinal lining, making it directly relevant for gut-targeted repair, but some peptides may be degraded by stomach acid or digestive enzymes, slowing the effect
It's gentle enough to use twice daily and is designed for the face, neck, and decolletage
**Jojoba Oil (or other skin-friendly oil like Rosehip or Argan):** Mimics the skin's natural sebum, offering nourishment and helping to fortify the skin barrier
It has its own Cochrane reviews, the gold standard of evidence synthesis, and that alone separates it from essentially every peptide a biohacker actually buys