The world's most popular performance drug. Blocks adenosine, boosts everything from alertness to athletic output.
Verdict
9/10 Strong
Evidence
Grade A / 500+ Studies
8 things. 60 seconds. Everything you need.
WHAT IT DOES
The world's favorite stimulant.
DOES IT WORK?
9/10 Strong. This one actually works. The most studied psychoactive compound.
HOW MUCH TO TAKE
100-400mg
COST
Budget-friendly. $20-35/month for quality brands.
FIRST 24 HOURS
Don't expect miracles on day one. It's building in your system.
AFTER A FEW WEEKS
Most people notice something by week 2-3.
SAFETY
One heads-up: anxiety disorders, pregnancy.. Otherwise, you're good.
HOW IT FEELS
Alertness and energy.
+ 4 more questions
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