inject bpc 157 into shoulder bpc-157 Breakthrough Peptide Healing: How BPC-157 & TB-500 Support Rapid Recovery at Iowa IV Injections Around The Shoulder -
Description
It has a connecting entrance into the duodenum of the small intestine

Peptides built largely from water-loving (hydrophilic) amino acids do this readily

Wickramasinghe SN (1995)

However simple, the independent circuit design is not very flexible
[DOI] [PubMed] [Google Scholar] 106.Lavrov K.V., Shemyakina A.O., Grechishnikova E.G., Novikov A.D., Kalinina T.I., Yanenko A.S