Are you joking or are you serious? How are you going to respond to a serious discussion with a flippant fact and not point us in the right direction? Care to share where eye drops are obtained? I'm so curious
He is not joking. The speaker mentioned in the talk. Peptides are not stable substance to be put into capsule. And the Bioavailability of NGF make it not effective even by injection let alone put pills in mouth. Nasal spray and sublingual are two other ways to absorb supplements but eye drop probably is the most effective one.