Circulation and memory; meaningful bleeding risk with anticoagulants.
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
40/100Limited
WEAKLIMITEDMODERATESTRONGVERY STRONG
What the evidence supports: cognition — large trials failed to show dementia prevention.
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 twelve weeks or more to judge effect.
Who it's actually for
Age-related cognitive concerns and circulation, with bleeding risk weighed first.
Safe upper limit
Unverified
No formal limit; 120–240 mg extract daily in trials
Antiplatelet effect. Cases of spontaneous bleeding, including intracranial, have been reported.