N-acetylcysteine (NAC) is one of the supplement world’s quiet workhorses. It supplies cysteine, the rate-limiting building block your body needs to produce glutathione, its principal cellular antioxidant. That is why NAC anchors so many antioxidant, liver-support, and healthy-aging routines. NAC is also traditionally used to support respiratory comfort and normal mucus consistency during seasonal challenges. Each bottle contains 90 capsules — up to a three-month supply at one capsule daily (see label for serving size and milligrams per capsule). 5H8 manufactures under quality-controlled processes, and every bottle from SAVonOTC arrives factory-sealed with full expiration dating.
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. Consult your healthcare provider before use, especially if you are pregnant, nursing, or taking medication.
Suggested Use
Take as directed on the label, typically one capsule daily with water, with or without food. Consult your healthcare provider before use if you are pregnant, nursing, take blood-thinning or blood-pressure medication, or have a medical condition.
Frequently Asked Questions
What is NAC good for?
NAC is the main dietary precursor to glutathione, so it is used for antioxidant support, liver wellness, and seasonal respiratory comfort.
NAC vs. glutathione — which should I take?
NAC helps your body make its own glutathione; direct glutathione supplies it preformed. Many people take both — see our 5H8 Glutathione with Milk Thistle & ALA.
When is the best time to take NAC?
Any consistent time works. Some prefer it on an empty stomach; take it with food if you notice stomach upset.
Is NAC safe to take daily?
NAC has a long history of daily use in supplement servings. As with any supplement, follow the label and check with your provider if you take medications.
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