I bought l-glutathione and diluted 1 gram of the powder in 10ml of water and added it to a nasal spray bottle.
It tastes like acetyl-cysteine and is sour...
It seems to have inotropic glutamatergic effects, probably because the peptide is made of glutamate and it is broken down into it.
I do feel more energy... Perhaps more clear headed?
Anyone else have experience with intranasal l-glutathione?