Quietustin for Tinnitus: Ingredient Analysis & Evidence Review

Quietustin: Supplement Ingredient Breakdown & Scientific Evidence

Quietustin is a dietary supplement marketed for tinnitus relief. Below is an objective analysis of its listed ingredients and the evidence supporting their use for tinnitus.

Ingredient Profile & Evidence

Ingredient	Proposed Mechanism	Evidence for Tinnitus
Ginkgo biloba (standardized extract)	Vasodilation, antioxidant, mitochondrial protection, neurotransmitter modulation	Mixed: Cochrane reviews find insufficient evidence for tinnitus; some RCTs show modest benefit in vascular/age-related tinnitus. Standardized EGb 761® most studied.
Gotu kola (Centella asiatica)	Venous insufficiency improvement, antioxidant, anxiolytic	Limited direct tinnitus data; primarily studied for venous insufficiency, wound healing, anxiety
Niacin (Vitamin B3)	Vasodilation (prostaglandin-mediated), lipid modulation	Flushing dose (100–500mg) may transiently ↑ cochlear blood flow; no consistent tinnitus benefit in trials. High dose → hepatotoxicity risk.
Vitamin B12	Myelin synthesis, homocysteine reduction, neuronal health	Benefit only in B12-deficient individuals (common in elderly, metformin users). No evidence for routine supplementation in replete patients.
Zinc	Antioxidant, cochlear enzyme cofactor, synaptic modulation	Mixed: some RCTs show benefit in zinc-deficient / elderly; others null. Serum zinc testing recommended before supplementation.

Critical Considerations

• Not FDA-approved for tinnitus: Supplements regulated as food, not drugs; no efficacy/safety pre-market review
• Dosage transparency: Proprietary blends often hide individual doses
• Interactions: Ginkgo ↑ bleeding risk (anticoagulants, antiplatelets, surgery); niacin ↑ statin myopathy; B12 masks folate deficiency
• Placebo effect: Strong in tinnitus trials (30–40% response)
• Cost vs. evidence: Monthly cost often exceeds evidence-based therapies (CBT, sound therapy apps)

Evidence-Based Alternatives

• CBT for tinnitus (highest evidence)
• Hearing aids if hearing loss present
• Sound therapy apps (free/low-cost)
• TRT with trained provider
• Treat identifiable causes (cerumen, OM, TMJ, medication review)

Bottom line: Quietustin ingredients have theoretical rationale but insufficient clinical evidence for routine tinnitus treatment. Address deficiency states if present; prioritize evidence-based therapies. Consult your audiologist/ENT before starting supplements.