Mason Nac 500mg

Mason Natural NAC N-Acetyl L-Cysteine 500 mg is a high-potency dietary supplement formulated to support intracellular antioxidant defense, hepatic detoxification, and respiratory health. As a stable derivative of the amino acid L-cysteine, NAC serves as a direct precursor to glutathione—the body's master endogenous antioxidant. By promoting cellular glutathione synthesis, NAC neutralizes free radicals, protects cells against oxidative damage, and supports overall immune function. In addition to its cell-protective properties, N-Acetyl L-Cysteine acts as a natural mucolytic expectorant, helping thin and loosen thick mucus within the airway passages to support clear breathing during cold and flu season or environmental stress. Furthermore, NAC supports phase II liver detoxification pathways, aiding in the processing and elimination of metabolic wastes and toxins. Clean-formulated, certified gluten-free, and soy-free, this supplement delivers daily baseline support for cellular and respiratory wellness.

Adults: Take 1 capsule daily, preferably with a meal and a full glass of water, or as directed by a healthcare provider.


• Administration: Swallow whole with water.


• Product Characteristic: As a sulfur-containing compound, NAC may naturally emit a light sulfurous aroma, which is normal and expected for this ingredient.


• Precautions: Keep out of reach of children. Store in a cool, dry place. Consult a physician prior to use if pregnant, nursing, taking prescription medications, or managing a chronic medical condition.

Active Nutrient (per 1 capsule): N-Acetyl L-Cysteine (NAC, 500 mg).



Excipients & Base: Gelatin (capsule), cellulose, magnesium stearate, silica. Certified gluten-free and soy-free. Free of sugar, starch, egg, milk, yeast, wheat, fish, shellfish, peanuts, tree nuts, artificial colors, flavors, and preservatives.