This ability to pass through the whole small intestine without being absorbed is why it works so well as a SIBO testing option
J Physiol Paris 93:479485 Sikiric P, Seiwerth S, Brcic L, Blagaic AB, Zoricic I, Sever M, Klicek R, Radic B, Keller N, Sipos K et al (2006) Stable gastric pentadecapeptide BPC 157 in trials for inflammatory bowel disease (PL-10, PLD-116, PL 14736, Pliva, Croatia)
While symptoms like fatigue and brain fog resolve relatively quickly, nerve-related issues (such as numbness or tingling) may require six weeks to six months for full recovery
Saying spray "does the same thing" extrapolates across two unknowns: species and route
Peptide therapy may be combined with other regenerative treatments as part of a comprehensive recovery strategy
If your body already has adequate B12 levels, additional shots may not produce noticeable benefits