No sir
I haven’t used OPTIs brand
only his Biohyene and Jin
It’s legit China Pharma , so your gunna pay more just like paying more for US Pharma.....even with ANSOMONE ($3 to $4.50 an IU on average we can assume)
but just remember....those Chinese HGH “generics” are not a true generic medicine like a Walgreens Tylenol or generic pain med.....you won’t find them in any hospital, it’s truely blackmarkert - hence the price
doesn’t mean they are not a quality GH though. I think the lab testing along with serum testing shows the “generics” to be very good
but yea, paying more doesn’t necessarily mean better or more effective