What Is N-Acetyl-L-Cysteine (NAC)?
N-Acetyl-L-Cysteine (NAC) is a stable, highly bioavailable form of the amino acid L-cysteine and the body’s most effective precursor to glutathione — the master intracellular antioxidant. DFH’s NAC delivers a therapeutic dose to support glutathione synthesis, liver detoxification, immune function, respiratory mucosal health, and neurological protection from oxidative damage.
Key Benefits
- Primary precursor to glutathione, the body’s most powerful intracellular antioxidant
- Supports liver detoxification and protects against environmental and metabolic toxins
- Promotes respiratory health by supporting mucosal lining integrity
Who Should Take This?
NAC is ideal for patients with high environmental or chemical exposures, compromised liver function, respiratory challenges, post-illness recovery, or anyone wanting to support their body’s fundamental antioxidant defense system. It is also used supportively for mood and neurological health applications.
How to Use
- Serving size: As directed by your practitioner
- Timing: With meals to minimize potential nausea at higher doses
- Duration: 60–90 days as a therapeutic protocol; may be used long-term at maintenance doses
- Stacking: Works synergistically with vitamin C, alpha-lipoic acid, and selenium for glutathione recycling
Our Doctors’ Take
Our doctors consider NAC one of the most versatile and foundationally important supplements in our dispensary. Given the toxic load of modern life and the critical role of glutathione in virtually every cellular defense mechanism, supporting NAC levels is a high-leverage investment in long-term health. DFH’s quality ensures the potency needed for meaningful clinical results.
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
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