BPC-157 is one of the most powerful healing peptides available, and I use it regularly in my own protocols
Brizzolara, S., Manganaris, G
Studies show clearly diminishing returns above 10% in isolation, but combining GHK-Cu with a second complementary peptide (like AHK-Cu) extends the effect through a different mechanism, which is why dual-peptide formulations tend to outperform single-peptide concentrates at similar totals
One such emerging option is BPC-157 erectile dysfunction therapy
Neurosci Biobehav Rev 22:33-57
Standard injection protocol: Dose: 1 to 2 mg daily Duration: 10 to 20 day cycles Frequency: 1 to 3 cycles per year, spaced 4 to 6 months apart Timing: Evening administration to align with natural melatonin production timing Administration: Subcutaneous or intramuscular Maintenance protocol (sublingual): Daily sublingual sprays between injection cycles Lower bioavailability than injection but convenient for ongoing support The cyclic nature of Epitalon protocols reflects how the peptide works