Compound Library

Supplement / Liver Support

NAC (N-Acetyl Cysteine)

Precursor to glutathione — the body's master antioxidant. Protects liver, kidneys and lungs. Used as liver support on cycle and as a treatment for paracetamol (acetaminophen) overdose.

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Educational reference only. This page does not diagnose, prescribe, or replace care from a licensed professional. Laws, availability, and clinical appropriateness vary by location.
Reference dose600–1200 mg/day
Half-life6 hours
Risk flaglow
Regulatory noteReview required

Side effects and watch-outs

  • GI distress (nausea, diarrhoea — take with food)
  • Headache
  • Rare: skin rash
  • ⚠️ High-dose IV: anaphylactic reactions (oral form generally safe)
  • Potential: reduces efficacy of some chemotherapy drugs