Cordyceps CS-4
Solid evidence for endurance. Not a miracle worker, but genuinely useful for the right person.
Verdict
6/10 Mixed
Evidence
Grade B / 100+ Studies
The No-BS Summary
8 things. 60 seconds. Everything you need.
WHAT IT DOES
Fermented cordyceps. Oxygen utilization and endurance.
DOES IT WORK?
6/10 Mixed. Fermented version of wild cordyceps (which is rare and expensive). Evidence for oxygen utilization and endurance. Traditional energy tonic.
HOW MUCH TO TAKE
See product label
COST
Mid-range. $35-50/month. Standard for most people.
FIRST 24 HOURS
Don't expect miracles on day one. It's building in your system.
AFTER A FEW WEEKS
Give it 4-8 weeks for full effects. Patience pays.
SAFETY
Safe for most people. No red flags at normal doses.
HOW IT FEELS
Better endurance. Less fatigue during exercise. Altitude may feel easier.
QUICK ANSWERS
+ 4 more questions
DOSE-RESPONSE CURVE
How effective is creatine monohydrate at different doses? Here's what the research shows.