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N-Acetyl L-Cysteine (NAC) powder
$39.98 – $89.95
FOCAL NUTRITION®: Proudly Australian Owned and Operated!
100% PURE N-Acetyl L-Cysteine (NAC)
- PREMIUM QUALITY GUARANTEED
- PHARMACEUTICAL GRADE
- GMP-CERTIFIED MANUFACTURING
- 300G/300 SERVES OR 1KG/ 1000 SERVES
- FREE NEXT DAY SHIPPING
Save when you order more! *DISCOUNTS BASED ON TOTAL CART* You can add 1 of everything! Feel free to get in contact with us if you want even larger quantities: info@focalnutrition.com.au
| Quantity | Discount | Discounted price |
| 2 | 5% | - |
| 3 | 7.5% | - |
| 4 + | 10% | - |
Description
N-Acetyl L-Cysteine (NAC) Powder – Antioxidant & Detox Support
Protect. Cleanse. Restore.
Support your body’s natural defense and detox systems with Focal Nutrition’s N-Acetyl L-Cysteine (NAC)—a stable, highly bioavailable form of the amino acid L-cysteine. NAC is a powerful precursor to glutathione, one of the body’s most important antioxidants, helping to neutralize free radicals, support liver health, and maintain respiratory function.
Ideal for those looking to strengthen their cellular defenses, enhance recovery, and promote long-term wellness.
Key Benefits
1. Powerful Antioxidant Support – Boosts glutathione production to fight oxidative stress
2. Promotes Respiratory Health – Helps thin mucus and supports clear airways
3. Supports Liver Detoxification – Aids in the removal of toxins and metabolic waste
4. Neuroprotective Properties – May support cognitive health and brain cell resilience
5. Stable & Fast Absorbing – Highly bioavailable and well-tolerated
Product Features
✓300g HDPE jar or 1kg resealable bag of pure NAC powder
✓1000mg pure NAC per serve (measuring scoop included)
✓ Premium quality guarantee:
-No fillers, additives, or artificial ingredients
-Made in a GMP-certified facility
✓Free shipping
How to Use
Mix 1 serve (approx. 1g) with water or juice, daily, or as directed by your healthcare professional. Best taken on an empty stomach.
Shipping
SHIPPING IS FREE!
As an added bonus we upgrade all orders to EXPRESS for free when you order over $99 worth of supplements!
We use Australia Post for the vast majority of our deliveries. Although they aren’t perfect, in our experience they provide the most consistent service, speed and affordability. From time-to-time we experience delays (especially over holiday periods), please let us know and we will do out best to help assist in getting your products delivered. Please understand that we will do our best to refund or replace lost packages, but we cannot refund in-transit purchases due to slow postage. Sincere apologies for any inconvenience caused.
FAQs
1. How does NAC work?
NAC has cell-protective effects which work through antioxidant and anti-inflammatory mechanisms. On the antioxidant side, NAC is a potent upregulator of glutathione levels, one of the main anti-oxidants in the human body. Critically, NAC is far superior at increasing glutathione levels as supplementation of glutathione direction results in compound breakdown before it can be used.
Glutathione is found in every cell of the body and is intertwind with every critical process in the body from DNA synthesis to redox balance and healthy cell death.
2. Is NAC safe?
Yes, NAC has been extensively studied for over 60 years. No adverse side effects were observed even with excessive doses 20 times higher than the 1g recommendation. Another clinical trial reported no significant side effects at 8g/ day. However mild gastric distress may result in some individuals at these extremely high doses. We strongly recommend sticking to recommended dosage.
3. Should I use NAC or glutathione?
It may make more sense to supplement with glutathione directly to increase glutathione levels. However, the research now shows us that supplementation of glutathione itself is rapidly broken down by the digestive tract before it can be used. NAC is far more effective at crossing across the digestive tract and increases glutathione levels far above glutathione supplementation itself!
Disclaimer
This product does not claim to treat, diagnose, cure, or prevent any disease. The above simply details what current research has suggested. Instead, we encourage you to further explore all the scientific research, speak with a qualified healthcare professional and make an informed decision about your wellness journey.
Strengthen your body’s natural defenses.
NAC Powder – Detox from within, protect your health.
Additional information
| Flavour | Unflavoured |
|---|---|
| Size | 300g (300 serves), 1kg (1000 serves) |
FAQs
Directions
We recommend consuming 1 gram (~1/3 scoop) of NAC daily at any time of day (Tenorio et al. 2021).
Yes, this product is great for women as well!
Frequently Asked Questions
1. What does N-acetyl L-cysteine do?
NAC has cell-protective effects which work through antioxidant and anti-inflammatory mechanisms. On the antioxidant side, NAC is a potent upregulator of glutathione levels, one of the main anti-oxidants in the human body (Zhitkovich, 2019 & Oka et al. 2000). Critically, NAC is far superior at increasing glutathione levels as supplementation of glutathione direction results in compound breakdown before it can be used.
Glutathione is found in every cell of the body and is intertwind with every critical process in the body from DNA synthesis to redox balance and healthy cell death (Sies, 1999).
2. Is N-acetyl L-cysteine safe?
Yes, NAC has been extensively studied for over 60 years. No adverse side effects were observed even with excessive doses 20 times higher than the 1g recommendation (Miller & Rumack, 1983). Another clincal trial reported no significant side effects at 8g/ day (Atkuri et al. 2007). However mild gastric distress may result in some individuals at these extremely high doses (Miller & Rumack, 1983 & Atkuri et al. 2007). We strongly recommend sticting to recommended dosage.
3. Should I use NAC or glutathione?
It may make more sense to supplement with glutathione directly to increase glutathione levels. However, the research now shows us that supplementation of glutathione itself is rapidly broken down by the digestive tract before it can be used. NAC is far more effective at crossing across the digestive tract and increases glutathione levels far above glutathione supplementation itself!
Shipping
SHIPPING IS FREE!
As an added bonus we upgrade all orders to EXPRESS for free when you order over $99 worth of supplements!
We use Australia Post for the vast majority of our deliveries. Although they aren't perfect, in our experience they provide the most consistent service, speed and affordability. From time-to-time we experience delays (especially over holiday periods), please let us know and we will do out best to help assist in getting your products delivered. Please understand that we will do our best to refund or replace lost packages, but we cannot refund in-transit purchases due to slow postage. Sincere apologies for any inconvenience caused.
References
- Atkuri, K. R., Mantovani, J. J., Herzenberg, L. A., & Herzenberg, L. A. (2007). N-Acetylcysteine--a safe antidote for cysteine/glutathione deficiency. Curr Opin Pharmacol, 7(4), 355-359.
- Birnbaum, S. M., Winitz, M., & Greenstein, J. P. (1957). Quantitative nutritional studies with water-soluble, chemically defined diets. III. Individual amino acids as sources of non-essential nitrogen. Arch Biochem Biophys, 72(2), 428-436.
- Gazit, V., Ben-Abraham, R., Pick, C. G., Ben-Shlomo, I., & Katz, Y. (2003). Long-term neurobehavioral and histological damage in brain of mice induced by L-cysteine. Pharmacol Biochem Behav, 75(4), 795-799.
- Miller, L. F., & Rumack, B. H. (1983). Clinical safety of high oral doses of acetylcysteine. Semin Oncol, 10(1 Suppl 1), 76-85.Schwalfenberg, G. K. (2021). N-Acetylcysteine: A Review of Clinical Usefulness (an Old Drug with New Tricks). J Nutr Metab, 2021, 9949453.
- Oka, S.-i., Kamata, H., Kamata, K., Yagisawa, H., & Hirata, H. (2000). N-Acetylcysteine suppresses TNF-induced NF-κB activation through inhibition of IκB kinases. FEBS Letters, 472(2), 196-202.
- Sheffner, A. L. (1963). The Reduction In Vitro In Viscosity of Mucoprotein Solutions by a New Mucolytic Agent, N-acetyl-L-Cysteine. Ann N Y Acad Sci, 106(2), 298-310.
- Sies, H. (1999). Glutathione and its role in cellular functions. Free Radic Biol Med, 27(9-10), 916-921.
- Tenório, M., Graciliano, N. G., Moura, F. A., Oliveira, A. C. M., & Goulart, M. O. F. (2021). N-Acetylcysteine (NAC): Impacts on Human Health. Antioxidants (Basel), 10(6).
- Zhitkovich, A. (2019). N-Acetylcysteine: Antioxidant, Aldehyde Scavenger, and More. Chemical research in toxicology, 32(7), 1318-1319.
77 reviews for N-Acetyl L-Cysteine (NAC) powder
| 5 star | 100% | |
| 4 star | 0% | |
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As promised
Thank you very much!
Good job, I will buy again!
Very fast, professional and quality.
Amazing
It was a smooth transaction; the delivery was quicker than usual, and it was a good price. Thanks.
Great eBayer Great products 👍
Good
Arrived in good condition
Arrived as ordered
All good!
Won’t know until I have used it for a month or so
Well priced, good quality.
Very quick postage… Thank you very much
Top product and service
Thx
This NAC doesn’t give mea headache, I like it.Ta
The item was exactly what I ordered and it came quickly
thanks
Thanks
Thank you for fast post and a great price A +++
Supafast postage! 2nd time purchasing……5 star seller🌟..will keep as favourite seller~many thanks..Love💓..
Speedy delivery, fantastic
Smooth, easy transaction with fast postage. Thanks!
Received with thanks, quick postage.
Quick to Post – Exactly as described – Definately one of my favourite sellers for this type of product. Cheers!
Quick delivery. Good product
PURE NAC N-Acetyl L-Cysteine – AS GOOD AS ANY SIMILAR PRODUCT ON THE MARKET!
Prompt shipping, excellent product, will be back, thanks 🙏
Perfectly as described
Ordered from this seller numerous times and always quality products I absolutely recommend.
on time
Not first time order. Great supplement.
Nice
NAC coupled with glycine is excellent for sleep.
Love this product, helped me and my family through flue, COVID and coughing. Fast recovery to be expected everytime
Its NAC. Smells and tastes foul. Good way to know its genuine. More crystalline than I’m used to, but should mix ok. Good value and the desiccant pack is a good idea. Measuring spoon included too.
Item was well packaged and exactly what I expected.
Item as described. Prompt shipping. Excellent Seller.
I haven’t tried the product yet, but was very happy with the service, price & communication of the seller. I recommend them highly!! 🙂
I believe it’s the best price in Australia if you’re looking for NAC. Highly recommend the seller!
Great with glycine for sleep.
Great thank you! 🙂
Great service! Thanks+++
Great service, quick delivery, great product
Great seller
Great quality!
Great product, as described with good communication and fast delivery. Good seller👍🏼
Great product well packaged and fast delivery as well as excellent Customer follow-up. Highly recommended seller. 
Great product as described. Quick delivery.