Lion's mane
A few small human trials. Mostly lab work.
Grade B: Some human proof
Small, early or mixed results in people.
The grade is for the use people talk about, not for every use. Filed under: Brain support, over the counter.
How it works
A mushroom. In the lab it raises nerve growth factor.
How it was given in studies
By mouth. In the trials people swallowed it as a capsule, tablet, powder or drink.
This is what the studies did. It is not a how-to.
What studies saw
In a Japanese trial of 30 older adults with mild memory loss, scores improved over 16 weeks. They dropped again four weeks after stopping.
The trade-off
Few human trials, all small. Products vary a lot.
When it showed up, in studies
One small trial: better scores by 16 weeks. The gain faded after stopping.
Sources
Put this grade on your site
Copy the line below. The badge links back to this page, so readers can check the sources. It grades the compound in studies. It does not rate any product or seller.
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Keep going
We show what studies found. We never tell you what to take. Doses vary by study. Check the sources and talk to a doctor.