NAC (N-Acetylcysteine)
NAC (N-Acetylcysteine) from Greatlife supports the body’s detoxification processes by promoting liver function and protecting the liver against harmful substances. NAC also has a powerful mucolytic effect, which can help clear the airways and improve breathing. NAC Greatlife is our best N-Acetylcysteine supplement. It is packaged in a dark glass jar for optimal protection and is free from plastic. This supplement is pure, free from additives, toxins, and GMOs.
- NAC (N-Acetylcysteine) with 450 mg of pure NAC per daily dose
- Free from dairy, soy, sugar, gluten, and GMOs
- Free from artificial sweeteners, colourings, preservatives, hydrogenated oils, corn syrup, and magnesium stearate
- Dark glass jar free from BPA, phthalates, and other hormone-disrupting chemicals
- Manufactured under HACCP standards in the EU
- Suitable for vegans and vegetarians
- Fast delivery (2–4 days)
- Free shipping over €59
- In stock
NAC (N-Acetylcysteine)
NAC (N-Acetylcysteine) from Greatlife contains pure N-acetylcysteine, an amino acid that plays an essential role in the body’s natural functions. N-acetylcysteine is a derivative of cysteine, a sulphur-containing amino acid that is a building block in many vital biological processes. It acts as a precursor to glutathione, one of the body’s most powerful antioxidants, making NAC a popular supplement to support the body’s natural defence system.
NAC from Greatlife is a pure and effective supplement, carefully formulated to provide the highest possible quality. It is packaged in a dark glass jar to protect the contents from light and preserve its purity, as well as being completely free from plastic to ensure an eco-friendly packaging. Our products contain no unnecessary additives, making NAC an excellent choice for those seeking a pure and effective dietary supplement.
Premium Quality NAC
NAC from Greatlife is a pure, high-quality form of N-acetylcysteine, easily absorbed by the body. This supplement is free from dairy, soy, sugar, gluten, and GMOs, as well as artificial sweeteners, colourings, preservatives, hydrogenated oils, corn syrup, and magnesium stearate. It comes in a dark glass jar that is free from BPA, phthalates, and other hormone-disrupting substances. Manufactured to HACCP standards in the EU, this product is suitable for both vegans and vegetarians.
| Contents per daily dose (3 capsules) | % of DRI | |
|---|---|---|
| N-acetyl-L-cysteine | 450 mg | * |
DRI = Daily Reference Intake
* DRI not established
Other ingredients
Microcrystalline cellulose (filler), vegetable capsule (hydroxypropylmethylcellulose).
Dosage
Take 1 capsule in the morning, 1 capsule in the afternoon, and 1 capsule in the evening daily, preferably with a meal. If swallowing is difficult, the capsule can be opened and the contents sprinkled on food or in a drink consumed immediately.
Note
The recommended daily dose should not be exceeded. Keep out of reach of children. Food supplements should not be used as a substitute for a varied diet. A balanced and varied diet and a healthy lifestyle are important. Store in a dry, dark place at room temperature. Never store food supplements in direct sunlight, in a damp environment, or near a heat source. Consult your doctor before use if you are pregnant, breastfeeding, or have a medical condition. Keep cool and dry. Made in the EU. Ensure the jar is tightly sealed.
What is NAC (N-Acetylcysteine)?
NAC, or N-Acetylcysteine, is a stable form of the amino acid cysteine that acts as a powerful antioxidant and a precursor to glutathione, the body's most important detoxification molecule. Glutathione is found in every cell and is crucial for protecting the body against oxidative stress, environmental toxins, heavy metals, and inflammation. NAC is often used to support liver health, the immune system, respiratory function, and cellular protection, and is one of the most well-researched supplements in antioxidant research.
What does NAC do in the body?
NAC helps the body produce more glutathione, which enhances the cells' ability to neutralize free radicals and detoxify harmful substances. It particularly supports the liver's phase II detoxification system, making it important for individuals exposed to toxins, alcohol, medications, or other liver stressors. NAC also has mucolytic properties and is often used to facilitate breathing during colds or irritation in the airways. At the cellular level, NAC contributes to reducing oxidative stress and inflammation, which are central to the body's recovery and long-term health.
How does NAC affect the brain and nervous system?
Recent research shows that NAC may also have positive effects on brain function and mental well-being. Since glutathione is important for protecting nerve cells against oxidative stress, NAC has been shown to support mental clarity, focus, and emotional balance. Studies have also indicated that NAC may contribute to reduced anxiety and improved motivation, which is partly explained by its impact on glutamate levels, a neurotransmitter associated with stress and mood regulation.
Who can benefit from taking NAC?
NAC is particularly valuable for individuals looking to support liver function and detoxification, strengthen the immune system, improve recovery after infections, or reduce oxidative stress. It is often used in cases of fatigue, impaired liver health, recurrent respiratory infections, high inflammation levels, or exposure to chemicals. Since NAC also positively affects glutathione levels in the brain, it may be useful for those seeking to support mental clarity and balance in the nervous system.
How should NAC be taken?
The recommended dose is one capsule three times daily, preferably with meals, in the morning, afternoon, and evening. This provides a steady absorption throughout the day and optimizes the antioxidant effect. If there are difficulties swallowing capsules, they can be opened and the contents sprinkled on food or mixed in a cold drink that is consumed immediately.
Can NAC be combined with other supplements?
Yes, NAC works very well together with other antioxidants such as Vitamin C, Selenium, and CoQ10, all of which interact within the body's antioxidant network. Together with Magnesium M4 and Omega-3, NAC can also contribute to increased energy, reduced inflammation, and better cell health.
Are there any side effects or precautions?
NAC is generally very well tolerated and safe at the recommended dose. Some individuals may experience mild nausea if taken on an empty stomach, which is why it is recommended to take the capsules with food. Pregnant or breastfeeding individuals should consult with a healthcare provider before use.