All surgery scars, not so much stretch marks?BPC-157 has worked awesome on my wifes boob implant scars, unreal and she had skin cancer surgery a few yrs ago, and wiped that scar out to non existent as well. It is awesome stuff. She injected right above the scars And i do not know if area injection helped or it was a systemic response, but it definitely worked within a few months and she had them for years.