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If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Life Extension N-Acetyl-L-Cysteine (NAC) provides powerful antioxidant support and promotes optimal cellular health. NAC is a stable form of the amino acid cysteine that helps the body produce glutathione — one of the most important antioxidants for detoxification, immune defense, and liver protection.
NAC Supplement, N-Acetyl Cysteine Capsules, Antioxidant Support Supplement, Glutathione Precursor
N-Acetyl-L-Cysteine (NAC) – 600 mg
Other Ingredients: Vegetable cellulose (capsule), microcrystalline cellulose, silica, vegetable stearate
Supports cellular antioxidant defense by boosting glutathione levels
Promotes liver detoxification and healthy liver function
Aids respiratory health by helping clear mucus and supporting lung function
Enhances immune system activity and overall resilience
Helps protect against oxidative stress and free radical damage
N-Acetyl-L-Cysteine serves as a precursor to glutathione, a vital antioxidant that neutralizes harmful free radicals and supports detoxification pathways in the liver. By replenishing cellular glutathione, NAC helps maintain cellular health, enhances immunity, and supports respiratory and metabolic function.
High-potency 600 mg dose per capsule for effective results
Backed by Life Extension’s science-based formulation and purity testing
Suitable for vegetarians
Free from GMOs, gluten, and artificial preservatives
Manufactured in the USA under strict quality standards
Individuals looking to support liver health and detoxification
Those exposed to environmental pollutants or oxidative stress
People seeking antioxidant and immune system support
Vegetarians and adults seeking daily cellular protection
Take one capsule one to three times daily, or as recommended by a healthcare professional.
1–3 capsules per day depending on individual health needs and healthcare guidance.
Consult your healthcare provider before use, especially if pregnant, nursing, or taking medications.
Do not use if you have a history of peptic ulcers or are taking nitroglycerin.
Keep out of reach of children.
Store in a cool, dry place.
Generally well-tolerated when taken as directed.
In rare cases, may cause mild gastrointestinal discomfort such as nausea or flatulence.
Form: Vegetarian capsules
Quantity: 60 capsules per bottle
Manufacturer: Life Extension, USA
Storage: Keep tightly closed and away from direct sunlight.
Q: What is NAC used for?
A: NAC supports liver health, antioxidant defense, respiratory function, and immune balance.
Q: Can I take NAC daily?
A: Yes, it can be taken daily as part of your antioxidant and detox support routine, under healthcare guidance.
Q: Does NAC help with immunity?
A: Yes, NAC helps replenish glutathione, which plays a vital role in maintaining immune cell activity.
The content is purely informative and educational in nature and should not be construed as medical advice. Please use the content only in consultation with an appropriate certified medical or healthcare professional.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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