Theres a lot of confusion about the difference between BPC 157 arginate and acetate forms, so lets clear that up. The key distinction comes down to stability in the gut. This only applies to oral Does BPC 157 Cause Erectile Dysfunction? Evidence and Safe Treatments Bolt Pharmacy How Long Does BPC 157 Take to Work? Timeline and Guide BPC 157 can be taken orally or subcutaneously, and for most people there is no difference in efficacy.Yes, some people will notice one works better than the other. Yes, some people will claim that BPC 157 has already hit the mainstream, but should it hit your bloodstream?