If you want to go deeper on the injection process itself before reading about hardware, the complete GLP-1 injection guide is a good starting point
BPC-157 has been studied for a variety of topics and has shown to be helpful in many areas such as: tendinopathy, gastric ulcers, general inflammation, and even neuroprotection
Where you place an injection can make more of a difference than you might think
How GLP-1 Medications May Help Quiet Constant Food Thoughts If you can't stop thinking about food even when you're not hungry, you may be experiencing food noise
Not safe: any GLP-1 product sold without a prescription, research-use-only peptide tablets, GLP-1 gummies, GLP-1 activating supplements, sublingual drops sold without a clinician evaluation, semaglutide sodium or acetate salt forms (not the same molecule as approved or properly compounded semaglutide), and anything labeled retatrutide or cagrilintide for human use (neither is approved)
and whether a vendor is currently in stock for the selected size