While this is more of a theoretical concern with robust peptides like BPC-157, it's a principle of good laboratory practice
This uncertainty does not mean the compound is ineffective or dangerous
Oral vs Injectable: A Key Difference Many metabolic therapiesespecially peptidesrequire injections due to poor absorption when taken orally
Those with naturally high NNMT activity might respond more dramatically to inhibition, while those with lower baseline activity might see more modest effects
Administration and Guidance BPC-157 is administered via subcutaneous injection, typically near the area of injury or concern
[Crossref] El-Saie LT1, Rabie AR, Kamel MI, Seddeik AK, Elsaie ML (2011) Effect of narrowband ultraviolet B phototherapy on serum folic acid levels in patients with psoriasis