AMA: caffeine, theanine and fly agaric

The caffeine part has evidence. The mushroom does not.

AMA is a 2 oz “flow-state” tonic with 5 mg of “detoxified” Amanita muscaria (fly agaric), 100 mg of caffeine and 150 mg of L-theanine. Short answer: caffeine with L-theanine reliably gives a small boost to attention for an hour or two in placebo-controlled trials. We found no trial of fly agaric or its active compound, muscimol, for focus — only surveys of side effects and case reports of poisoning.

How the evidence flows

Flowchart for this page: each claim, the studies that tested it and what they found, and the grade that follows. The same studies and grades are listed in full below.

Each claim (middle), the studies that tested it (left) — green found it, red found nothing — and the grade they add up to (right). Drawn from the same records as the grades below. Tap to open full size.

Amanita + caffeine focus tonic (AMA) · evidence checked 2026-10-27

What the research shows

Grades are calculated from the studies listed, by fixed rules.