If you’re looking for a clean, research-popular antioxidant-support ingredient, NOW Foods NAC with Selenium is a smart daily option. N-Acetyl Cysteine (NAC) is a stable form of cysteine—an amino acid used by the body in multiple processes, including helping maintain protein structure and supporting the formation of glutathione, one of the body’s most important internal antioxidants.
This formula pairs 600 mg NAC with Selenium (25 mcg)—an essential trace mineral involved in antioxidant enzyme activity.* Together, they provide focused cellular antioxidant support for people who want everyday wellness support in a simple capsule format.
Why people choose NAC + Selenium
- Supports glutathione-related antioxidant defenses
- Helps provide free radical protection
- Includes Selenium to support key enzyme functions
Quality you can trust
- Non-GMO, Halal, Kosher
- Produced under GMP quality standards
- Made and quality tested in the USA with globally sourced ingredients
Supplement Facts
Serving Size: 1 capsule
- N-Acetyl Cysteine (NAC): 600 mg
- Selenium (elemental): 25 mcg (45% DV) (from 5 mg L-selenomethionine)
Suggested Use
Take 1 capsule twice daily.
Other Ingredients
Hypromellose (cellulose capsule), stearic acid (vegetable source), citric acid, microcrystalline cellulose.
Not manufactured with: wheat, gluten, soy, milk, egg, fish, shellfish, tree nut, or sesame ingredients (as listed).
Warnings
For adults only. Consult physician if pregnant/nursing, taking medication, or have a medical condition. Keep out of reach of children. Store in a cool, dry place after opening.









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