Amino Acid
NAC (Sulfur/Detox Focus)
Also known as: N-Acetyl Cysteine (detox)
Cysteine precursor providing sulfur for glutathione synthesis and detoxification.
Last reviewed June 2026 · Evidence graded from peer-reviewed research, not editorial opinion. Educational only — not medical advice.
Primary uses
- Glutathione support
- Detoxification
- Liver support
- Antioxidant
How it works
- Glutathione precursor
- Direct antioxidant
- Mucolytic
Dosage
- Typical range
- 600-1800mg daily
- Timing
- Any time
- With food
- Optional
- Duration
- Safe long-term
- Special populations
- Detox support, liver health, respiratory
Forms
- Capsules
- Powder
Safety
Common side effects
- GI upset
- Sulfur smell
Contraindications
- Active peptic ulcer (relative)
Evidence notes
Essential for glutathione
Grade A: Multiple well-designed human trials support the main claims.
Related in Amino Acid
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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.