What Is The Best NAC Supplement?

Are some NAC supplements better than others? How do you know which NAC supplement will work best for you? What should you look for in NAC supplements?

Continue reading to discover the answers to these questions and learn why GSH+ is the best NAC supplement on the market.  

What Is NAC?

N-acetyl-cysteine (NAC) is a potent precursor to the amino acid cysteine and plays two essential roles in the metabolic process. First, through its contribution to glutathione production (the master antioxidant that is essential to a healthy immune system) and second, with its role as a regulator of the glutamatergic system, influencing the reward-reinforcement pathway.

Because of this, consuming adequate amounts of cysteine and NAC is essential for a variety of health motivators. Although most often influenced by its ability to replenish glutathione. Along with two other amino acids, glutamine and glycine, NAC is directly involved in making and replenishing glutathione. 

Frequently used in hospitals today to treat patients with liver and lung issues, NAC acetyl cysteine has powerful anti-inflammatory and antioxidant effects, but the body can only absorb about 10% of the NAC it digests. Fortunately, there are other forms of NAC that not only help your body make more glutathione but are also more effective and easier to incorporate into your daily routine. 


One of the most bioavailable forms of NAC, N-acetylcysteine ethyl ester (NACET), is also the only form of the antioxidant that can cross the blood-brain barrier. Additionally, recent studies have found that a unique feature of NACET allows it to increase the viability in oxidative stress cells more efficiently than NAC because it is able to react “directly and more rapidly with oxidizing agents” and significantly increase the glutathione content.  

The Benefit of Glutathione

But why is glutathione production so important? The master antioxidant glutathione is essential to a healthy immune system and is the key to your energy level. Glutathione helps… 

Modulate Inflammation

By seeking out the molecules that cause inflammation and cellular damage (free radicals), glutathione is able to neutralize them throughout the body and reduce oxidative stress. 

Optimize Liver Function

In helping the liver remove toxins, glutathione is able to encourage the detoxification process by attaching itself to toxins, making them water-soluble and easier for the body to eliminate through sweat or urine. 

Increase Insulin Sensitivity

Excess glucose in the blood creates more free radicals, but with increased glutathione, your body can respond faster to elevated levels of blood sugar and bring it back to healthy, stable levels. 

Support Lung Function

In fighting against oxidative stress, glutathione also works to reduce inflammation and help clean out allergens and toxins from the lungs. 

Although glutathione supplements are commercially available, their bioavailability is controversial. Not only does your body have a difficult time absorbing pure glutathione, but there is also a risk of giving your body too much glutathione and entering into a “hyper reductive state” where your body is receiving an abundance of glutathione, so to respond, it stops making it on its own. 

Learn more about glutathione. 

The Best NAC Supplement

“I noticed a difference in how I feel within the first couple of days of taking GSH+. My mind feels as though it has been lifted out of a "cloud", I have more energy, and my overall well-being is just better! I noticed that my gut health has been so much better since I've been on GSH+. On it for life!” - Martina D. 

Instead of a pure glutathione supplement that risks a “hyper reductive state” or a generic NAC supplement that is difficult for your body to absorb, try giving your body the building blocks to create more glutathione on its own. 

Taking the benefits of NACET and combining it with the other key ingredients for glutathione, including L-glutamine, glycine, and selenium, master formulator Dr. Steve Morris created the ultimate glutathione-boosting supplement, GSH+. 

While most other supplement brands have a difficult time working with NACET, because of its pungent smell that’s difficult to mask, Dr. Morris was able to perfect a formula that utilizes NACET and produce the most comprehensive glutathione-enhancing supplement on the market— and he made it easy and pleasant to take!

Live your best life. Try GSH+ today!