Yes that’s the smell training bit of the protocol but the other bit is a modified very fine PeaLut supplement designed to pass over from mouth to brain, thus its name Glialia based on the brain’s immune system ‘bits’( brain won’t come up with name I want so forgive unscientific ‘bits’!) , then ALA added which I know from extended smell loss well before Covid is used to limit inflammation in the nose. It’s Italian research originally being used for other brain diseases to pass from ‘body to brain’ as lots of drugs don’t. There are research papers on it by Prof Arianna di Stadio.