BPC 157 and Penis Growth: What the Evidence Actually Shows Everyones talking about peptides like this so lets actually look at the science., Yes there is a study on BPC 157 and cancer., But its a 2004 conference abstract (not even a full paper), looking I spent 4 months reporting on the peptide BPC 157 and its unlikely journey from a research lab in post communist Croatia to today's MAHA movement. Ask me anything. : r IAmA BPC 157 and other peptides are everywhere in the fitness world right now. The anecdotal reports (and some early research) are exciting! But, we still need to approach BPC 157 with caution. Right now, BPC 157: What It Is, What We Know, and Why Its Use for Arthritis Remains Unproven San Diego Orthobiologics Medical Group