Caffeine

The most widely consumed psychoactive substance. Blocks adenosine, improves performance.

EVIDENCE

established

PRICE

AVAILABLE AT

iherb

Available
forms.

Anhydrous

Citrate

Natural (coffee/tea)

Caffeine affects the following biological pathways. Click any mechanism to see everything else that affects it.

Adenosine makes you tired. Caffeine blocks it.

PDE breaks down cAMP. Inhibiting PDE = signals last longer.

Breakdown of stored fat into free fatty acids for energy.

Thermogenesis is heat production by the body. Increasing it burns more calories at rest.