Blog

"Nootropic" covers caffeine, supplements and prescription drugs. Where the word came from, what healthy-adult research shows, Dutch rules and safety basics.

Gaming, focus and energy

Oct 12, 202611 min read

Guarana and yerba mate: caffeine in different packaging?

Guarana and yerba mate are both caffeine sources. What is documented about each, how to read the numbers, and the caffeine, sleep and mate safety points.

Gaming, focus and energy

Oct 12, 2026

12 min read

Gaming Supplements vs Energy Drinks vs Coffee: What Each One Actually Gives You

Coffee, energy drinks, caffeine pills and a gaming tablet compared by caffeine per portion, sugar, sleep and what small gaming trials show.

Gaming, focus and energy

Oct 12, 202610 min read

Caffeine and L-theanine: what is the pairing about?

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.

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, 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.

Smartshop exploration

Oct 12, 202617 min read

What Is Kratom? The Plant, the Evidence and the Dutch and EU Legal Position

Kratom explained: the plant and its alkaloids, what human research shows, dependence and interaction risks, and where it stands in Dutch and EU law.