Used for fatigue and cognitive performance. Interacts widely.
TrustedSupp Tier System™ · Tier 3Take as a defined course
Check before you startThis one has documented interactions with medication classes where the consequences are serious. If you take any prescription medicine, run it past a pharmacist before starting.
Evidence strength
42/100Limited
WEAKLIMITEDMODERATESTRONGVERY STRONG
What the evidence supports: fatigue and cognition; results are inconsistent.
This scores how well-supported the claim above is — not how much benefit you personally would get. A high score on a narrow claim does not extend to everything the product is marketed for.
How long to take it
Courses of a few weeks with breaks; continuous use is not well studied.
Who it's actually for
Short-term fatigue and cognitive support.
Safe upper limit
Unverified
No formal limit; courses of 200–400 mg extract are typical
Can raise blood pressure, cause insomnia, and interact with several drug classes.