What the Research Says About Lion's Mane and Nerve Growth Factor

Lion's Mane (Hericium erinaceus) has become one of the most popular functional mushrooms in the nootropic space, largely because of its studied relationship with nerve growth factor, or NGF — a protein involved in the growth and maintenance of neurons.

The compounds of interest are hericenones (found in the fruiting body) and erinacines (found more in the mycelium). This distinction matters more than most labels let on: a lot of cheap Lion's Mane products are grown on grain and sold as 'mycelium' biomass, which includes a significant amount of starchy grain filler by weight, diluting the actual mushroom content per capsule.

We use fruiting-body-only extract for exactly this reason — it's a more concentrated, more consistent source of the compounds people are actually looking for when they buy Lion's Mane, standardized here for beta-glucan content as a quality marker.

Like most functional mushrooms and adaptogens, Lion's Mane isn't something most people report noticing acutely. It's generally taken daily over weeks as part of a longer-term routine rather than for an immediate effect.

If you're comparing products, the two questions worth asking are: is it fruiting body or mycelium-on-grain, and is the beta-glucan or polysaccharide content actually standardized and stated on the label — not just implied by the word 'extract.'