Frequency depends on the clinical reason for treatment
doi:10.1155/2012/954748 Cunha EBB, Silva NFD, Lima J, Serrato JA, Aita CAM, Herai RH
While research is still evolving, early studies suggest that BPC-157 with the addition of tb500 may support: Soft tissue repair Tendon and ligament recovery Muscle healing Gut lining support Inflammation modulation For a deeper look at the available research and mechanisms, you can explore this overview from the National Institutes of Health: Key Benefits of BPC-157 1
However, note that GHK-Cu used in skin and hair ingredients aren't harvested from plasma and tissues but are produced in the lab
Researchers should understand both the available data and its limitations
Do not leave it sitting on the lab bench while you reconstitute your peptide