Muscle Fibre Performance Series Caffeine Powder  (150 g)

Caffeine is a natural stimulant most commonly found in coffee, tea, cacao, and various energy drinks and supplements. It primarily affects the central nervous system (CNS), acting as a nervous system stimulant that temporarily increases alertness and reduces fatigue. Caffeine works by blocking the effects of adenosine, a neurotransmitter that promotes sleep and relaxation, leading to heightened wakefulness and improved focus.