HomeBlog › Ginkgo & Blood Flow
Mixed Evidence

Ginkgo Biloba for Cerebral Blood Flow: Mixed Evidence, Real Caution

2026 guide  •  6 min read

Short answer: Ginkgo biloba is extensively studied but genuinely inconsistent — large dementia-prevention trials were largely disappointing despite its popularity, and it carries a real caution for anyone on blood thinners.

Why Ginkgo's popularity outpaces its evidence

Ginkgo has a long history of traditional use and remains one of the most popular brain-health botanicals — but large, well-designed prevention trials have genuinely not confirmed the dramatic benefits its popularity might suggest.

What "mixed evidence" honestly means here

⚠️ Worth knowing: talk to your doctor before use if you take blood thinners or blood pressure medication — Ginkgo and several other ingredients here can interact with these.

Why an honest formula still includes it

Rating Ginkgo's evidence as "mixed" rather than omitting it or overselling it reflects an honest middle ground — traditional use and some supportive research exist, without pretending the evidence is as strong as more well-established ingredients.

See Ginkgo's honest rating in Harmo Brain

120mg, rated "mixed evidence" — not overstated.

See the Ingredients
60-day money-back guarantee