Free shipping on orders $50+

ViveSpan
NAC 600mg with Selenium — front

Not HSA/FSA eligible

Pay with a credit or debit card at checkout.

Foundational

NAC 600mg with Selenium

NOW Foods · 1 capsule twice daily (1200mg NAC + 50mcg selenium/day) per label

MSRP $21.99
1 capsule · AM, with food

Log in or create an account, then take the 5-minute health assessment to see your price.

Log inNew here? Create an account

✛ Why it's used

Maintains Cellular Health*.

With Selenium.

N-acetyl cysteine (NAC) is a stable form of the non-essential amino acid cysteine. It is a sulfur-containing amino acid that acts as a stabilizer for the formation of protein structures, and is also necessary for the formation of glutathione.* Selenium is an essential trace mineral that facilitates the production of several important enzymes.*

Suggested use

Take 1 capsule twice daily.

Supplement facts

Serving size 1 CapsuleServings per container 100
Amount per serving
Selenium (from L-Selenomethionine)25 mcg
Molybdenum (from Sodium Molybdate)50 mcg
N-Acetyl Cysteine (NAC)600 mg

Other ingredients: Hypromellose (cellulose capsule), Stearic Acid (vegetable source) and Citric Acid.

Dietary considerations · Gluten free · Soy free · Egg free · Milk free · Tree nut free · Fish free · Wheat free · Sesame free · Crustacean Shellfish Free · Non-GMO

Listed under Nutritional Supplements > Amino Acids > N-Acetyl-Cysteine (NAC)

⚠ Key cautions

Cautions: mild GI upset (nausea) possible, particularly on an empty stomach; NAC has a characteristic sulfur odor. Prescription interactions: nitroglycerin/nitrate medications (NAC may potentiate vasodilatory/hypotensive effect); anticoagulant/antiplatelet medications (theoretical additive bleeding-risk concern at higher NAC doses); chemotherapy (NAC's antioxidant effect could theoretically interfere with some oxidative-stress-dependent regimens — review with oncology care team). Priority: Moderate.