No problem - the post you were replying to also left out some information, though- almost all hericium liquid culture mycelium also fail to produce the compound

No problem - the post you were replying to also left out some information, though- almost all hericium liquid culture mycelium also fail to produce the compound in question. It can be produced with certain specific liquid cultures, but for the home grower the highest erinacine A yields can be achieved by growing on small-ground corn kernel ( <2 mm ). you could be forgiven for thinking consumption of the fruiting body is what provides benefits - almost all lions mane 'supplement' companies are selling dried, ground fruit bodies because that also 'supplements' their income stream - sell the fruiting bodies for a premium, grind up the trim pieces and leftovers for a secondary income stream. They fail to mention that the product they are selling is essentially worthless, outside of what could be better achieved by eating fruiting bodies anyhow. There are a few reputable companies out there that validate the amount of erinacine A in a typical batch, those are the ones you want to buy from.