BPC itself is a protein that is found in stomach acid, while BPC-157 is a synthetically produced fragment of this natural protein
They make sense conceptually but need clinical trials to determine safety, dosage, timing and interactions
For example, 1000 mcg is the same as 1 mL of a 1000 mcg/mL solution
Peptide Power: A Practical Guide to Enhancing Muscle Strength, Recovery, and Athletic Performance: BPC-157, TB-500 and Other Peptides for Optimal Performance [Plantagenet, Grant] on Amazon.com
This may affect stability and provides additional L-arginine at the site of activity, which could be relevant given BPC-157s NO-system mechanism
Patients with leaky gut, IBD, autoimmune diseases, and MCAS may benefit from combining these peptides with: Dietary protocols , such as gluten-free, anti-inflammatory, or autoimmune paleo diets