Does Ginkgo Biloba Help Tinnitus? Reviewing the Evidence

Ginkgo biloba is probably the single most recommended over-the-counter supplement for tinnitus, sold specifically for that purpose in pharmacies and health food stores worldwide. The evidence behind it is worth looking at directly, because it doesn't support the reputation.

The clearest answer available: a meta-analysis says no

The most rigorous evidence on this question comes from a study that both ran its own randomized, placebo-controlled trial and combined it with five other similar trials into a meta-analysis covering more than 1,000 patients total. The result: no statistically significant difference between ginkgo biloba and placebo on any of the outcome measures tested — tinnitus handicap scores, general health status, or hearing thresholds. In the pooled data, 21.6% of ginkgo-treated patients reported improvement, compared with 18.4% on placebo — a difference small enough to be explained by chance, not a real treatment effect. The authors' summary is direct: ginkgo biloba does not benefit patients with tinnitus.

A separate evidence review reached the same bottom line, describing the existing trials as showing no meaningful benefit over placebo despite over 1,000 participants across six trials.

Why "ginkgo" on a label doesn't mean one consistent thing

Most of the meaningful trial data on ginkgo for tinnitus specifically tested a single, tightly standardized extract called EGb 761 — manufactured with a defined extraction process and adjusted to a consistent 22–27% flavone glycosides and 5–7% terpene lactones (the compounds, including bilobalide and several ginkgolides, thought to be behind ginkgo's pharmacological effects). This matters because not every ginkgo supplement on a shelf uses this same standardized formulation or concentration — generic, non-standardized ginkgo products may contain meaningfully different amounts of the active compounds, which makes it hard to generalize confidently from EGb 761 trial results to whatever a specific bottle actually contains. If the negative trial results are the reason you're inclined to skip ginkgo, that reasoning applies most directly to EGb 761 and formulations standardized to match it — an unstandardized product is, if anything, even less likely to have any effect, not more.

The proposed mechanism, for context, centers on improved blood flow: ginkgo compounds are thought to have vasoregulatory effects (widening blood vessels and reducing platelet clumping) that could theoretically improve circulation to the cochlea, which is sensitive to blood flow given its high metabolic demands. This is a biologically plausible mechanism — it's part of why ginkgo was tried for tinnitus in the first place — but a plausible mechanism doesn't override what the actual clinical trials found once tested directly in humans.

A note on newer research: more recent studies continue to investigate EGb 761 for tinnitus, including work looking at whether specific patient subgroups (by tinnitus duration, severity, or other characteristics) respond better than the pooled average suggests. This is worth watching, but as of the most rigorous pooled evidence available, it hasn't overturned the negative headline result from the largest trials.

Why the reputation persists anyway

A few things keep ginkgo's reputation alive despite the negative trial data:

• Older, smaller, lower-quality studies occasionally found positive results, and get cited more than the larger negative ones that came later.
• Tinnitus fluctuates naturally, and supplements are often started during a particularly bad stretch — improvement that would have happened anyway gets attributed to whatever was being taken at the time.
• Ginkgo has documented benefits in unrelated areas (mild cognitive symptoms, circulation-related conditions), and that general reputation as "good for blood flow to the brain" gets applied to tinnitus by extension, even though the specific tinnitus trials don't back it up.
• It's genuinely a low-risk, easy-to-try option, which makes it an easy default recommendation even without strong evidence — a fair thing to know before spending money on it, not necessarily a reason it's harmful to try.

Is it dangerous to try anyway?

Ginkgo biloba is generally well-tolerated, though it can interact with blood thinners (including aspirin and warfarin) and increase bleeding risk, and isn't recommended before surgery. If you're not on blood thinners and want to try it despite the evidence, the risk is mainly financial rather than medical — but going in with accurate expectations, rather than the marketing claim, is the more useful starting point.

Where the evidence is better spent

If the underlying interest is trying something with real supporting research, cognitive behavioral therapy and sound therapy both have meaningfully stronger evidence for reducing tinnitus-related distress than ginkgo has for reducing tinnitus itself.

Where the professional guideline lands

This is not a lone reading of the trials. The American Academy of Otolaryngology–Head and Neck Surgery's clinical practice guideline on tinnitus issues an explicit recommendation against ginkgo biloba, melatonin, zinc and other dietary supplements for persistent, bothersome tinnitus. That is the same conclusion the pooled trial data supports, arrived at independently by a guideline panel.

The guideline dates from 2014, so it predates some of the newer work discussed above. Nothing published since has overturned the headline result.