NAC (N-Acetyl Cysteine) — 600 mg — 100 Vegetarian Capsules — Maintains Cellular Health*
LifeSource Vitamins NAC provides 600 mg per capsule, with selenium (L-selenomethionine) 25 mcg and molybdenum (sodium molybdate) 50 mcg. Non-GMO. Produced in FDA-registered, GMP-certified facilities and 3rd-party tested for purity, potency, and label accuracy.*
Research-Driven & Verified Product.
Explore the clinical research, ingredient science, and global evidence supporting this product below.
Research Promise:
At LifeSource Vitamins, our commitment is rooted in research and results. Every benefit below is supported by human clinical studies indexed in the National Institutes of Health (NIH) via PubMed, with full texts available in the National Library of Medicine (NLM) PubMed Central (PMC) when available. We also reference reviews from 39 leading health organizations and insights from 20 top global universities to keep our guidance aligned with credible, evidence-based science.* Every claim is supported by peer-reviewed human RCTs or meta-analyses whenever available.
Clinically Studied Benefits
✓ Glutathione & antioxidant support* — NAC replenishes intracellular GSH and supports redox balance.
NIH/PubMed — Atkuri, 2007
✓ Respiratory/mucolytic action* — Mucolytics including NAC reduce exacerbations in chronic bronchitis/COPD contexts (effects vary by era/design).
NIH/PubMed — Poole, 2019 (Cochrane)
✓ Airway clearance (nebulized NAC)* — 12-week multicenter study reported decreased sputum viscosity and improved symptoms in COPD.
NIH/PMC — Rhee, 2024
✓ Detox/immune redox roles* — Human-focused review covering glutathione-dependent pathways and clinical contexts.
NIH/PMC — dos Santos Tenório, 2021
✓ Exercise performance/recovery* — Increased time-to-fatigue and redox changes in trained adults (crossover).
NIH/PubMed — Medved, 2004
✓ Exercise/antioxidant capacity* — Evidence synthesis across human studies.
NIH/PMC — Fernández-Lázaro, 2023
✓ Metabolic markers (select populations)* — Improved insulin sensitivity with adjunct NAC in PCOS (RCT).
NIH/PubMed — Fulghesu, 2002
NIH/PMC — Liu, 2023 (Sys. Review)
✓ Male reproductive parameters* — Clinical improvements in semen quality and oxidative markers.
NIH/PubMed — Ciftci, 2009
NIH/PMC — Jannatifar, 2019
✓ Cardiometabolic/vascular context* — Human data in selected vascular settings report oxidative/endothelial effects.
NIH/PubMed — Camuglia, 2013
✓ General safety/overview* — Broad human use and dosing considerations summarized.
NIH/PMC — Mokhtari, 2016
✓ Antioxidant enzyme activity (selenium)* — Selenium elevates glutathione peroxidase activity in humans.
NIH/PubMed — Duffield, 1999
✓ Selenium & Molybdenum (authoritative)* — Roles in GPx/redox and sulfur-compound metabolism.
NIH/ODS — Selenium
NIH/ODS — Molybdenum
Additional / Promising Evidence
✓ Performance & recovery* — Supplemental evidence on NAC and exercise outcomes.
NIH/PMC — Fernández-Lázaro, 2023
✓ Comprehensive redox/clinical overview* — Multi-system clinical applications summarized.
NIH/PMC — Mokhtari, 2016
We monitor research from leading institutions —
Harvard, Johns Hopkins, Mayo Clinic, Cleveland Clinic, Cambridge, Oxford, Stanford, Yale, Tufts, University of Florida, Oregon State University – Linus Pauling Institute, Columbia, Cornell, Ohio State — to align with credible science.*
Key Ingredients
- N-Acetyl Cysteine (NAC) — 600 mg per capsule
- Selenium (as L-selenomethionine) — 25 mcg per capsule
- Molybdenum (as sodium molybdate) — 50 mcg per capsule
- Other Ingredients — Hypromellose (cellulose capsule), stearic acid (vegetable source), citric acid
Brief Benefit Bullets
- Supports glutathione & antioxidant defenses*
- Helps maintain clear, comfortable airways*
- Nutritional support for normal detox pathways*
- Non-GMO, gluten-free, vegetarian-friendly*
- Crafted in FDA-registered, GMP-certified facilities*
-
3rd-party lab tested for purity & potency
Suggested Use
Take 1 capsule twice daily, or as directed by your healthcare practitioner. Do not exceed recommended dose. If pregnant, nursing, taking medications, or have a medical condition, consult your physician.*
Product Specifications
• Serving Size — 1 Vegetarian Capsule
• Servings Per Container — 100
• Form — Vegetarian Capsules
• Active Ingredients (per serving): NAC 600 mg†; Selenium 25 mcg (as L-selenomethionine) — 45% DV; Molybdenum 50 mcg (as sodium molybdate) — 111% DV
• Other Ingredients — Hypromellose (cellulose capsule), stearic acid (vegetable source), citric acid
• Allergen Note — Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish, or tree nut ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.
• Storage — Store in a cool, dry place after opening.
• Free From — Non-GMO
• Quality — Third-party tested for identity, potency & purity
† Daily Value not established.
Perfect For
• Adults seeking targeted glutathione precursor support*
• Those looking to support liver and lung health*
• People who want to enhance detox pathways naturally*
LifeSource Vitamins — Proudly American — Since 1992
*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.
NAC 600 mg — supports antioxidant defenses, respiratory comfort, and normal detox pathways. Clinically Studied Ingredients — NIH/PubMed!*
