Designs for Health N-Acetyl-L-Cysteine (NAC) 900 mg – 120 Vegetarian Capsules
€ 67,95
N-acetyl-L-cysteine from Designs for Health with 900 mg per capsule. NAC is an acetylated form of the amino acid L-cysteine and one of three amino acids that form glutathione. 120 vegetarian capsules.
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Ingredients
N-acetyl-L-cysteine (NAC). Other ingredients: cellulose (vegetarian capsule), vegetable stearate, silicon dioxide, ascorbyl palmitate.
Full list with amountsHow to Use
Recommended dose: 1 capsule daily, or up to 2 capsules daily if you need more.
Full instructionsThird-party testing
Designs for Health publishes the laboratory report for this product. It opens on their own site — we link the original rather than keeping a copy that would go stale.
How we check third-party testingShipping and Returns
Orders over € 169 ship free within the EU. Below that, shipping is € 14,95 anywhere in the EU (€ 9,95 within Sweden), added at checkout. Unopened items can be returned within 30 days of arrival.
Product Details
N-acetyl-L-cysteine from Designs for Health
NAC (N-acetyl-L-cysteine) delivers 900 mg per capsule of this amino acid precursor to glutathione – the body’s most abundant intracellular antioxidant.
About NAC and glutathione
N-acetyl-L-cysteine (NAC) is a modified form of the amino acid cysteine and one of the most researched precursors to glutathione, the body’s most abundant intracellular antioxidant. Glutathione is formed in the body’s cells from three amino acids: cysteine, glycine and glutamic acid. Of the three, cysteine is the one in shortest supply, which is why it is the one supplemented.
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NAC has been studied in several hundred published scientific studies. Research published in journals such as Antioxidants & Redox Signaling and Free Radical Biology & Medicine has studied NAC for its specific role in mucolytic activity (thinning mucus) and delivers 900 mg per capsule. It is one of the few substances that effectively raises intracellular glutathione levels when taken orally.
NAC is often combined with glycine, the third amino acid in glutathione, since cysteine and glycine are the two the body runs short of. Designs for Health’s NAC is a single-ingredient capsule with no fillers, which is what makes it straightforward to combine with anything else.
Contents per capsule
| Ingredient | Amount |
|---|---|
| N-acetyl-L-cysteine (NAC) | 900 mg |
Other ingredients: cellulose (vegetarian capsule), vegetable stearate, silicon dioxide, ascorbyl palmitate.
Use
Recommended dose: 1 capsule daily, or up to 2 capsules daily if you need more.
Or as directed by a doctor. NAC can be taken on an empty stomach for the best absorption. Store in a dry, cool place.
Quality and certifications
✓Dairy-free
✓Soy-free
✓Vegetarian
✓Non-GMO
✓cGMP certified
Learn more
Who is NAC for?
NAC suits you if you want to support the body’s glutathione and antioxidant status. It is popular among biohackers, the longevity-focused and athletes who want NAC as a single amino acid product in a high dose.
What is glutathione and why does it matter?
Glutathione (GSH) is a tripeptide built from cysteine, glycine and glutamic acid, and is the body’s most abundant intracellular antioxidant. Cysteine is the amino acid of the three that the body has least of, and NAC is a stable, well-absorbed form of it. The product is not a replacement for medical treatment.
What is the difference between NAC and glutathione supplements?
Glutathione as a direct supplement has lower bioavailability because it is largely broken down in the digestive tract. NAC is a building block the body uses to produce glutathione in the cells where it is needed. NAC is therefore often considered a more effective way to raise intracellular glutathione levels.
When during the day should I take NAC?
NAC can be taken at any time. An empty stomach gives the best absorption, but it also works with a meal. Many prefer the morning or lunchtime.
How long does one jar last?
One jar contains 120 capsules. At 1 capsule a day it lasts 4 months, at 2 capsules a day 2 months.
Can I combine it with other antioxidants?
Yes, NAC is often combined with alpha-lipoic acid, glycine, B vitamins (particularly B6 and folate) and magnesium. Consult a nutritional therapist to tailor a protocol.
Where and how is the product made?
NAC is made in the USA by Designs for Health in a facility following cGMP standards regulated by the FDA. The raw material undergoes third-party testing for identity, potency and the absence of heavy metals.
About Designs for Health
Designs for Health is an American supplement brand founded in 1989 with a focus on functional medicine practitioners. The company has positioned itself as the “Science First” brand and has for several years been ranked the most recommended supplement brand among functional medicine practitioners in the USA.
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NAC is one of Designs for Health’s most sought-after single amino acid products. The formula is simple and clean – 900 mg of highly pure NAC per capsule with no unnecessary additives – entirely in line with their “Science First” philosophy.
Tap here for important information about food supplements
Food supplements are not intended to replace a varied diet or medical treatment. Do not exceed the recommended daily dose. Keep out of reach of young children. Consult a doctor if you are pregnant, breastfeeding, unwell or taking medication.
Substance
Substance: N-acetyl-L-cysteine (NAC) 900 mg per capsule.
Pairs well with
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Primal Multiancestral multivitamin & phytonutrients
Blueprint Longevity Mix Blood Orangedaily nutritionYou can read more about food supplements and what is worth keeping in mind at the European Food Safety Authority.



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