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What trials of caffeine with L-theanine measured, how much may be down to caffeine, one small esports trial, EFSA caffeine figures and label arithmetic.

Gaming, focus and energy

Oct 12, 20269 min read

Bacopa: where does the memory interest come from?

Bacopa trials report better scores on some memory tests after about 12 weeks. What they tested, where reviews disagree, side effects and interactions.

Functional mushrooms and adaptogens

Oct 12, 202611 min read

Shilajit: resin, labels and the research

A tub of tar with a pedigree: what shilajit is, what small trials measured, what labs found in samples and which label questions help (8 October 2026).

Functional mushrooms and adaptogens

Oct 12, 202611 min read

Reishi and sleep: what the research shows

Reishi's calming reputation versus the evidence: the only human sleep outcome is a company-funded five-mushroom blend. Labels and safety cautions.

Functional mushrooms and adaptogens

Oct 12, 202610 min read

Lion's mane: the mushroom behind the focus claims

Lion's mane's focus reputation starts in cells and animals; human trials are small. Why fruiting body, mycelium and extract labels matter.

Functional mushrooms and adaptogens

Oct 12, 20269 min read

Cordyceps: fungus, formulations and performance claims

Sinensis, militaris or Cs-4? Which species the endurance trials used, what they found, and the Dutch position read on 8 October 2026.

Functional mushrooms and adaptogens

Oct 12, 20269 min read

Chaga: what is in the extract?

Chaga looks like charcoal on a birch. What's inside it, how little has been tested in people, and the oxalate kidney case reports worth knowing first.

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