Reading this site's two opposite lists together — who it suits, and who should check first or skip it — gives a clearer picture of who's likely to notice the most difference, and who likely won't.
An adult, especially an older adult, wanting general daily support for memory and focus, comfortable with a simple one-capsule routine, willing to commit to two to three months, and comfortable with a formula that names only some of its ingredients — per this site's own combined framing.
This site is direct that anyone on thyroid medication, sedatives, or acetylcholine-acting drugs, anyone with a mushroom allergy, stomach ulcer or slow heart rate, anyone pregnant, nursing or under 18, and anyone seeking a dementia or Alzheimer's treatment should check with a doctor first or skip it entirely.