NAC - N-Acetyl Cysteine

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NAC - N-Acetyl Cysteine | Select Balance Supplements

N-acetyl cysteine | Select Balance Supplements

N-acetyl cysteine acts powerfully to strengthen the immune system and to loosen mucus from mucous related conditions. It also acts as an antioxidant. This is pure NAC with NO additives, binders or fillers. ‡

N-acetyl cysteine has also been shown to reduce the possibility of pregnant women miscarrying. N-acetyl cysteine may suppress oxidative stress, according to a 2008 study published in the "Reproductive BioMedicine Online" journal. Humans convert N-acetyl cysteine into the antioxidant, glutathione. Antioxidants fight free radicals. The study found that N-acetyl cysteine and folic acid supplements significantly increased the take-home baby rate of participants compared to taking folic acid alone.‡

Fight colds and flu. NAC is a remedy often recommended by holistic doctors to prevent—and reduce symptoms of—the flu. A well-known Italian study published in European Respiratory Journal found that only 25% of people who took NAC and were injected with a flu virus developed flu symptoms compared with 79% who received a placebo. You also can consider taking NAC when you notice the first signs of a cold.

Protect your lungs. NAC protects the lungs by helping to make glutathione in the lining of the lungs. NAC also can act as a buffer against pollution. When you have a cold, taking NAC can protect your lungs from complications such as bronchitis. In people who have chronic obstructive pulmonary diseases such as emphysema, NAC can help reduce the buildup of mucus and congestion which, in turn, can help relieve the chronic cough that often accompanies emphysema. NAC also is recommended for people with pulmonary fibrosis, since it may slow the disease.

Detox the liver. NAC is known to help cleanse the liver—it helps people whose livers are damaged either because of alcoholism or elevated liver enzymes. Elevated liver enzymes can occur in people who have hepatitis or heart failure or who are obese.

Acetaminophen Overdose and NAC Dosing: NAC can be used for acute acetaminophen dosing. If you or someone you know has potentially overdosed on acetaminophen (Tylenol), get to the emergency department as soon as possible. This is a NAC calculator for overdose that could be helpful after acute treatment.

Supplement Facts


Manufactured in a US FDA inspected facility. GMP Compliant. 
‡ These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure or prevent any disease.

2 Reviews

  • 5

    Posted by Lori G. on Mar 16th 2020

    I always get sick with bronchitis EVERY year. I was recommended to try this brand by a friend that swore by it. I wasn't sure at first but within 2 days I was feeling great, without the need for medications or ER visits. These always end in antibiotics for me, but I think I got to it soon enough. I'm going to take this whenever I feel any cough, cold or runny nose coming on!

  • 5
    Pregnancy + Fertility

    Posted by Kate E. on Mar 16th 2020

    I had 3 miscarriages back to back. I couldn't sustain a viable pregnancy over 10 weeks. It was devastating, my husband and I tried for years. I started working with Stephanie (NP who creates this brand) and within 3 months I was pregnant.

    My husband and I both took NAC (with prenatals and other regimen she recommend) and it WORKED. I was recommended to stay on it until at least 20 weeks into pregnancy, but I felt it kept my immune system strong so I continued to take it. I took extra when I felt any upper respiratory illness coming on and it prevented me from ever being sick.

    I know there's a lot of factors that go into conception and staying healthy during pregnancy, but I could feel this making me strong and healthy. My baby was born on time, perfect weight and now is one year old, running circles around me.

    Using it right now to prepare for a future baby.