Along with the bpc for healing, its to keep my joints more lubricated and feeling good while i push over the course of these 10 weeks, as i plan to try and progress as much as i can, plus where i live is very cold this time of year, the more comfortable my joints feel and the better they can function it is a win for me, arguably its shorted lived as it only helps while on cycle, my whole aim with just 100mg is for healing and feeling good, if i was going to try and aim for growth id push the npp a bit higher 200-250mg range, that is my thought process on why i chose npp.