Thorne Research NAC

40 reviews

Selection: 90 Vegetarian Capsules
Sale price$29.00

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**Formerly CystePlus
  • Thorne Research NAC (N-Acetylcysteine) is a potent amino acid that increases glutathione levels (for liver detoxification).In addition to supporting respiratory health, it also has kidney-protective effects.
  • N-acetylcysteine (NAC), a sulfur-containing amino acid, is the precursor to the amino acid L-cysteine, one of the three amino acids that comprise glutathione.
  • Animal and human studies of NAC have concluded it has potent antioxidant activity.In addition to its antioxidant activity, NAC is effective in promoting normal liver detoxification and protecting the liver and the kidneys from toxic insults.
  • As a sulfur source, NAC stimulates the synthesis and activity of glutathione, an important antioxidant in its own right.
  • Research suggests NAC is capable of enhancing immune function.
  • NAC also helps maintain good pulmonary health due to its mucolytic activity.
  • In a double-blind, placebo-controlled trial, NAC positively impacted lymphocyte cell numbers, white cells that are crucial to normal immune function.
  • The sulfur in NAC is able to cleave the bonds in mucoproteins, which results in mucus being broken into smaller, less viscous pieces.Hence, NAC's ability to decrease the viscoelasticity of nasal mucus and increase the clearance of mucus by the cilia by thinning secretions helps maintain good pulmonary health.

Suggested Use:

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


One Capsule Contains:

N-Acetyl-L-Cysteine 500 mg.

Other Ingredients: 

(derived from cellulose) capsule, Leucine, Silicon Dioxide.

Allergy Warning

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


If pregnant, consult your health professional before using this product.


There are no known adverse interactions or contraindications at publication date.

* These statements have not been evaluated by the U.S. Food and Drug Administration. This product is not intended to treat, mitigate, diagnose or cure any disease.

Customer Reviews

Based on 40 reviews
Marcy N.
Excellent on-line store

I’m pleased with the product I purchased, and that this company is so easy to buy from.

Mellissa F.
Fast delivery

This came really fast., good quality product

Karen K.
Very satisfied

I like this product and feel I benefit using it.

Susan F.
Thorne NAC is the greatest for detox.

Thorne NAC is one of my favorite supplements. As a former smoker who quit ten years ago, I was amazed at how much it cleared out my lungs even after all this time. It is such a great detox and I’m feeling so good in many other ways also.

Pat P.

I love NAC. Can’t live without

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