bpc-157 and tb-500 nasal spray + BPC157 & TB500 Spray -
Description
Youre looking at just 13 mcg actually making it into circulation

Reconstitution (mixing the lyophilized powder with bacteriostatic water) and drawing the right volume on an insulin syringe is where most people make errors

10.1016/j.neuron.2015.05.046 Neuron 19 KatzP

It is not approved as a drug for any condition by the FDA, EMA, or other major regulators
After receiving the insulin, the subjects were asked to sniff to aid in the delivery of the drug into the nasal cavity

Is it all about your genes
