Ear Health
NAC (Hearing Protection)
Also known as: N-Acetyl Cysteine (hearing)
May protect against noise-induced hearing loss. Used preventatively before loud noise exposure.
Last reviewed June 2026 · Evidence graded from peer-reviewed research, not editorial opinion. Educational only — not medical advice.
Primary uses
- Hearing protection
- Noise damage prevention
- Tinnitus
How it works
- Antioxidant protection
- Reduces noise-induced oxidative stress
- May protect hair cells
Dosage
- Typical range
- 600-1200 mg before noise exposure
- Timing
- 1-2 hours before loud noise
- With food
- Optional
- Duration
- Preventative use
- Special populations
- Musicians, loud noise exposure
Forms
- Capsules
Safety
Common side effects
- GI upset
Contraindications
- None
Evidence notes
Noise-induced hearing loss prevention
Grade B: Some human trials support key claims; further confirmation needed.
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Medical disclaimer. This page is educational and does not replace advice from a qualified healthcare provider. Individual needs and risks vary — consult a professional before starting, stopping, or combining supplements, especially if you are pregnant or nursing, taking medication, or managing a health condition.