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Thorne Research NAC - N-Acetylcysteine Capsules

$3300

Pickup available at Fitchburg

Usually ready in 4 hours

90 capsules

From your lungs to your liver, Thorne Research NAC is an antioxidant supplement that supports whole-body health. 

  • Powerful antioxidant*
  • Helps your body maintain optimal glutathione levels*
  • Fights oxidative stress for a healthy immune system*
  • Supports lung and respiratory health*
  • Promotes healthy liver function*

Thorne Research NAC - N-Acetylcysteine


Amino acids are often referred to as the “building blocks of life”. There’s a good reason! Your body combines amino acids to form proteins. They provide energy for your body. They’re essential for growth and development. Plus, they help build even more protein! So, it’s no surprise that supplementing your daily diet with additional amino acid support is beneficial! While your body produces amino acids on its own, adding a dietary aid like Thorne Research NAC to your wellness routine allows you to give certain areas of your body a little extra love.


N-acetylcysteine, or NAC for short, is a sulfur-containing amino acid. It’s also a powerful antioxidant. This means it helps your body defend against oxidative stress by keeping free radicals in check!* As the name suggests, free radicals are just that—free and radical. They’re unpredictable. They can also be destructive if they overwhelm your system. Antioxidants like NAC help balance free radical levels.*


That’s good news for healthy immune function.* As if NAC weren’t impressive enough on its own, it’s also used to make glutathione—known as the antioxidant of all antioxidants! Glutathione plays a key role in healthy kidney and liver function—and your body’s natural detoxification process.* Your kidneys and liver aren’t the only organs NAC is good for, though. It can also be helpful for respiratory wellness.*


NAC helps support respiratory health and normal mucus balance.* This may help promote healthy lung function and respiratory comfort.* Wonder what else this amino acid can do? The list goes on! NAC also:



  • Supports reproductive health in women*

  • Promotes healthy brain function and cognitive health*

  • Helps support healthy insulin function and metabolic wellness already within a normal range.*

  • Helps with athletic performance and recovery after exercise*


NAC is a powerful amino acid that supports several essential body functions. For additional amino acid support, try Solgar BCAA Plus (Branched Chain Amino Acids). But don’t forget the magnesium! Pure Encapsulations Magnesium Citrate helps your body absorb amino acids, so your body can make the most of those powerful nutrients.



Reviewed for accuracy by our licensed clinical team — doctors, nurse practitioners, and functional medicine specialists at The Healthy Place Clinic in Madison, WI.


Suggested Use: Take 1 capsule two to three times daily or as recommended by your health professional.

Cautions: Keep out of the reach of children. Consult a physician before taking this product if you are pregnant, nursing, taking any medications, or have a medical condition.

Allergy Warning: This product is contraindicated in an individual with a history of hypersensitivity to any of its ingredients.

Questions? We’ve got answers! Reach out to our support team for help.
Serving Size: 1 Capsule

Servings Per Container: 90

Ingredients: N-Acetyl-L-Cysteine

Other Ingredients: Hypromellose (derived from cellulose) capsule, Leucine, Silicon Dioxide

FAQs About Thorne Research NAC - N-Acetylcysteine Capsules

Q: What do people usually take NAC for? A: Most people take NAC for antioxidant support, especially for the lungs and liver. Each capsule has 500 mg of N-acetyl-L-cysteine, which helps your body make glutathione.*

Q: How should I take this one? A: Take 1 capsule two to three times a day. If your stomach is sensitive, take it with food. Some people do fine with NAC on an empty stomach.

Q: Does this help with mucus and respiratory stuff? A: Yes, many people use NAC for respiratory support because it helps support normal respiratory function and antioxidant defenses.*

Q: Is there anything else in the capsule besides NAC? A: Yes. The active ingredient is 500 mg of N-acetyl-L-cysteine. The capsule also contains hypromellose, leucine, and silicon dioxide.

Q: My doctor said to be careful with supplements. Are there any concerns with NAC? A: Yes, check with your doctor first if you take medications or have a medical condition. If you're pregnant or nursing, talk to your OB or midwife before starting it.

Q: Should I take NAC every day or just when I need it? A: Either can make sense, depending on why you're taking it. A lot of people use it daily for a while, but if you're taking it for something specific, follow your practitioner's guidance on how long to use it.

Q: Is this one vegan? A: Yeah, it should be. The capsule is made with hypromellose, which is cellulose-based, not gelatin.

At The Healthy Place, we strive for accuracy in our product images and information. However, manufacturers may make changes to product packaging or ingredients that are not yet reflected on our site. We recommend that you read the labels, warnings, and directions on purchased products before use and not rely solely on the information provided by The Healthy Place.