Supplements (ginkgo, zinc, melatonin…) for Tinnitus: What Does the Evidence Show?
Drugs & Pharmacology
Current evidence
Heavily marketed, repeatedly tested, consistently unsupported.
Evidence strength: Weak (1/5) · Tier 5 — weak or unsupported · Evidence independence: Mixed.
Over-the-counter products marketed for tinnitus — Ginkgo biloba, zinc, melatonin, B vitamins, magnesium and branded blends.
Did tinnitus loudness improve?
None shown. No effect shown.
Did tinnitus distress improve?
None shown. Cochrane on ginkgo (12 studies, N=1,915): 'little to no effect', very uncertain. Cochrane on zinc: no evidence of benefit. Melatonin: small studies suggest sleep benefit at best — not a tinnitus effect.
Loudness means the tinnitus percept itself became quieter (psychoacoustic matching or loudness ratings). Distress means questionnaire scores such as THI/TFI, sleep, anxiety or quality of life improved — the sound may be unchanged. A THI/TFI improvement is never evidence the tinnitus got quieter.
How strong is the evidence?
Multiple Cochrane reviews found nothing: 1/5, Tier 5 — the clearest marketing-vs-evidence gap on the site.
Has the result been independently replicated?
None yet.
Independence: Supplement-industry funding common in positive studies; rigorous independent reviews are negative.
What are the limitations?
- Marketing vastly exceeds evidence
- Ongoing cost with no expected benefit
Conflicts of interest: Supplement-industry-funded studies are common in this space.
What should patients know about safety?
Safety evidence: Moderate. Ginkgo has bleeding-risk interactions; zinc excess causes copper deficiency. 'Natural' is not 'harmless'.
Is it available?
Regulatory status: Unregulated supplements. AAO-HNSF 2014 recommends against dietary supplements for tinnitus. Marketing claims on these products routinely exceed all evidence.
Availability: Everywhere — that's the problem · Europe: Everywhere · Cost (approx.): $10–60/month, indefinitely
What the studies found
Ginkgo biloba for tinnitus (Cochrane Review)
Sereda M, et al. · Cochrane Database of Systematic Reviews · 2022 · N=1,915 (12 studies) · Systematic review
Ginkgo 'may have little to no effect' on tinnitus; the evidence is very uncertain.
Zinc supplementation for tinnitus (Cochrane Review)
Person OC, et al. · Cochrane Database of Systematic Reviews · 2016 · N=209 (3 studies) · Systematic review
No evidence that oral zinc improves tinnitus symptoms in adults.
Melatonin for tinnitus: randomized double-blind crossover
Hurtuk A, et al. · Annals of Otology, Rhinology & Laryngology · 2011 · N=61 · Randomized double-blind placebo-controlled crossover; melatonin 3 mg nightly × 30 days
Significantly greater decreases in tinnitus matching and self-rated tinnitus vs placebo (p<0.05), plus improved sleep. Small, short crossover — a signal, not an established therapy.
Outcomes mix intensity-matching and self-rating (not THI-based). Greatest effect reported in men, bilateral tinnitus, and those without prior depression/anxiety. Guidelines still recommend against supplements as a class.
AAO-HNSF Clinical Practice Guideline: Tinnitus
Tunkel DE, Bauer CA, Sun GH, et al. · Otolaryngology–Head and Neck Surgery · 2014 · N=Guideline (23-author multidisciplinary panel) · Clinical practice guideline (US)
RECOMMENDS: hearing-aid evaluation (with hearing loss) and CBT for persistent bothersome tinnitus. OPTION: sound therapy ('may recommend'). AGAINST routine use: medical therapy (antidepressants, anticonvulsants, anxiolytics, intratympanic drugs), dietary supplements (Ginkgo, melatonin, zinc), and rTMS. NO RECOMMENDATION: acupuncture.
Guidelines are consensus documents, not new trial data. Where the three major guidelines disagree — chiefly on sound therapy (AAO-HNSF: option; NICE and the European guideline: research-only; the German S3 guideline: against sound generators) — this platform shows the disagreement rather than picking a side. Statement strengths read from the published abstracts; full-text verbatim wording not independently re-read.
Related treatments
- SPI-1005 (ebselen) — The most advanced drug with a tinnitus-relevant claim — but its trials are in Meniere's disease, and the…
- TRTL-913 (GABA-A modulator) — A new $106M bet that a GABA-A drug can quiet tinnitus — Phase 2 starts soon; no human tinnitus data yet.
- Intratympanic drug injections — Injections through the eardrum keep failing their controlled tests — the placebo response is doing the work.
- Off-label oral drugs (antidepressants, benzodiazepines, gabapentin, betahistine) — No drug is approved for tinnitus anywhere — and the systematic reviews say none of the usual suspects works…
Evidence last reviewed: 2026-09-03 · Evidence included through: 2026-09-03 · Confidence: high. Open the interactive evidence profile.
This page summarizes published research for education. It is not medical advice; it cannot say what will work for any individual. Discuss treatment decisions with a qualified clinician.