RetzlerRx® N-Acetyl-L-Cysteine (NAC) 900 mg is a high-potency, physician-formulated supplement designed to support glutathione production, antioxidant defense, and detoxification pathways. NAC is a stable form of the amino acid L-cysteine and plays an essential role in replenishing glutathione, often referred to as the body’s master antioxidant.
This advanced formula delivers 900 mg of NAC per capsule, providing targeted support for cellular health, immune resilience, and oxidative balance. NAC is widely used in longevity-focused wellness programs because of its ability to support normal detoxification processes and protect cells from oxidative stress.
Why NAC Matters
N-Acetyl-L-Cysteine functions as a precursor to glutathione, one of the most important antioxidant molecules produced in the body. Healthy glutathione levels help support cellular protection, detoxification pathways, immune balance, and overall metabolic resilience.
- Supports glutathione production and antioxidant defense
- Supports cellular resilience and oxidative balance
- Supports liver detoxification physiology
- Supports immune system function
Key Features & Benefits
- High-Potency NAC – 900 mg per capsule for clinical-strength support.
- Glutathione Precursor – Helps replenish the body’s master antioxidant.
- Antioxidant Defense – Helps neutralize oxidative stress and free radicals.
- Detoxification Pathway Support – Supports normal liver detoxification physiology.
- Immune Resilience – Helps support balanced immune function.
- Doctor Formulated – Developed for functional and longevity medicine.
- Clean Formula – Non-GMO, gluten-free, vegan-friendly, and free from artificial fillers.
Suggested Use
Take one capsule daily with a meal, or as directed by your healthcare professional.
Important Note About NAC Odor
NAC naturally contains sulfur, which may produce a mild odor sometimes described as similar to sulfur or “rotten eggs.” This is a normal characteristic of NAC and indicates ingredient purity rather than spoilage. If desired, capsules can be briefly aired before returning them to the bottle.
Practitioner-grade supplement available through HormoneSynergy® Longevity Medicine in Portland and Lake Oswego, Oregon. RetzlerRx® supplements are selected as part of an evidence-based preventive longevity medicine approach. Nationwide shipping available.
Important Notice: Dietary supplements are not intended to diagnose, treat, cure, or prevent any disease. Information provided is educational and should not replace personalized medical advice.
For best results, supplements should be used as part of a comprehensive health strategy including nutrition, exercise, restorative sleep, stress management, and appropriate medical evaluation when necessary.