NOW NAC Extra Strength delivers 1000mg of stable N-Acetyl Cysteine to support your body's glutathione production. This sulfur-containing amino acid acts as a precursor to glutathione — often called the body's master antioxidant because it works inside cells where other antioxidants can't reach.
Why It Works
GLUTATHIONE SUPPORT: Unlike unstable L-Cysteine, NAC provides a steady supply of building blocks for glutathione synthesis in liver and lung cells.
CELLULAR PROTECTION: Helps maintain the protein structures that keep your cells functioning optimally under daily stress.
CONVENIENT DOSING: One 1000mg tablet daily versus multiple smaller doses — no compromise on effectiveness.
What's Inside
Each tablet contains 1000mg of pure N-Acetyl-L-Cysteine with minimal excipients for maximum bioavailability. Simple tablet coating protects stability without unnecessary additives.
Why we carry it: NOW consistently delivers pharmaceutical-grade NAC that third-party tests verify for purity and potency.
This is a product I give to someone I care for who is non-verbal and also disabled. He is very vulnerable to flus, etc. so I give this product to keep him healthy and he has been around people with covid and the flu and he has remained in good health. I know it is because of this one product which I give him faithfully.
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Leanne A.
NAC!
This supplement is a life changer! Loving the outcome!
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Lisa S.
Gteat results
Gteat results
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M S.
A breath of fresh air
Either in reducing inflammation in my lungs or improving the oxygen exchange in the cells, taking NAC felt like taking a deep breath.
This dose is large (good) but so are the pills (not so good).
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Roxanne W.
NAC
I have been taking NAC for a month now and I am no longer stuffed up in the mornings and have more energy
