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Description
Small molecules below 75100 Da can readily permeate the mucosa, whereas permeability decreases sharply as molecular size increases, making most therapeutic peptides poorly absorbed via this route without incorporating any additives

Sikiric et al., 2010, 2011, 2012, 2013, 2014, 2016, 2017, 2018)
Neuroprotective Mechanisms There is increasing attention on BPC-157 for its interaction with neurological pathways

34 , 35 Testosterone likely modulates PDE5 activity as evidenced by animal studies showing up-regulation of PDE5 expression with testosterone supplementation
