(1 customer review)


  • Supports Respiratory Function*
  • Supports Glutathione Production*
  • Supports Detoxification*






What Is It ? N-acetyl-l-cysteine (NAC) is a derivative of the dietary amino acid l-cysteine. NAC has a high affinity for lung tissue, which it supports through mucolytic and antioxidant action. NAC also enhances glutathione production and plays a role in heavy metal detoxification.Uses For NAC : Immune And Respiratory System Health: When mucus thickens, it can become difficult to expel. Due to its sulfur content, NAC is able to disrupt disulfide bonds, thinning the mucus so that it, along with the trapped particles and bacteria, are more easily expelled from the lungs. NAC is a powerful free radical scavenger and thus supports epithelial cell health and healthy cilia activity in the respiratory tract.

NAC is also a precursor to the antioxidant glutathione. : Supplemental NAC increases tissue levels of glutathione. Lymphocytes, specific components of the immune system, rely on glutathione to function properly. Tissues enhanced with glutathione support overall antioxidant protection and help to maintain a healthy immune response.

A multicenter, randomized, double blind trial with 262 participants indicated that NAC supplementation for 6 months supported upper respiratory tract and immune system health. A recent meta-analysis of 8 double blind, placebo controlled trials provided additional support for NAC’s ability to support respiratory tract health.*

Supports Heavy Metal Detoxification : Several studies suggest that NAC administration to animals may help to reduce mercury and cadmium accumulation in the kidneys and liver and/or to moderate the effects of these metals in these tissues. NAC may achieve these actions in part by facilitating mercury removal from tissues, promoting healthy glutathione levels, or protecting tissues from peroxidation generated by heavy metals.*

What Is The Source?

Pure Encapsulations N-acetyl-l-cysteine is a free-form amino acid derived from duck feather. The vitamin C (as ascorbyl palmitate) is derived from corn dextrose fermentation and palm oil.

Are There Any Potential Side Effects Or Precautions?

Rare side effects may include nausea, vomiting, headache, dry mouth, dizziness, or abdominal pain. If pregnant or lactating, consult your physician before taking this product.

Are There Any Potential Drug Interactions?

NAC may interact with nitroglycerin and metoclopramide. Consult your physician for more information.

Additional information

Weight .4 kg


NAC (N-Acetyl-l-Cysteine) 600 mg

Supplemental Facts

Amount Per Serving Each vegetarian capsule contains: n-acetyl-l-cysteine (free-form) 600 mg. Other ingredients: vegetarian capsule (cellulose, water), ascorbyl palmitate 1 capsule, 1-3 times daily, between meals.


Therapeutic formulas for best results.

We offer pharmaceutical grade nutritional supplements, which are typically stronger in potency and higher in quality than supplements you’ll find in most retail or online stores. It also means you can expect to achieve greater results.

When purchasing any supplement, be sure to look at the all the ingredients and the manufacturer’s .

Quality ingredients and formulations.

The ingredients have been tested for purity, quality, potency, and composition, so you can trust the identity of each formula. It’s so important to know that what you are putting in your body is the purest form and highest quality. The ingredients and formulations in each of the products on this site are from wholesome, pure, clean sources, and in their most bioavailable forms for maximum effectiveness. This means that they are in the form that is best absorbed and utilized by your body.

It’s not just what’s in the supplement that matters – what’s not in the supplement is just as important. None of my supplements contain gluten, dairy, GMOs, preservatives, dyes or toxins.


Continental US Orders

Standard Shipping $9.99

  • All shipments originate from Austin, TX. Our goal is to process your order within 1-2 business days. Please allow up to 7-10 business days for processing and shipping.
  • FedEx next day orders placed prior to 12 pm CST Monday – Thursday will arrive the next business day. Orders placed after 12 pm on Thursday will be shipped out the following Monday. No orders will be shipped Friday-Sunday or on holidays
  • All orders must be delivered to addresses in contiguous 48 United States*. We are unable to ship products to APO/FPO, Puerto Rico (PR), or international addresses
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1 review for NAC

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*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.