NAC (N-ACETYL-L-CYSTEINE) 300mg
275mg of pure N-Acetyl L-Cystine per vegan capsule. Suitable for vegans.
- 300mg of NAC per serving.
- In vegetable capsules suitable for vegans.
- With Selenium and Vitamin E.
- 1 capsule per daily dose.
- Lasts 4 months!
Table of contents

What is NAC (N-Acetyl L-Cysteine) 300mg?
NAC (N-Acetyl L-Cisteine) 300mg by EssentialSeries a food supplement based on N-Acetyl-L-Cysteine, the acetylated version of the amino acid L-cysteine, with Selenium, Vitamin E and Riboflavin (Vitamin B2).
NAC (N-Acetyl L-Cysteine) 300mg is a food supplement suitable for vegans.
Nac by HSN properties
This HSN formula has been supplemented with Selenium and Vitamin E, two essential nutrients:
Selenium
- Selenium contributes to the normal functioning of the immune system.
Vitamin E
- Vitamin E contributes to the protection of cells against oxidative damage.

Why buy N-Acetyl L-Cysteine at HSN?
Adjusted dose
Each capsule of NAC contains 300mg of compound, a dose selected by our R&D technicians to make it easier to dose the food supplement.
Veggie capsules
The food supplement NAC (N-Acetyl-L-Cysteine) is 100% suitable for vegetarians and vegans.
It contains no ingredients of animal origin in its composition, neither in the development of the capsule contents, nor in the ingredients used as a glazing agent.
High quality forms
Which can be found, for example, in Selenium.
Where we use L-Selenomethionine, an organic form of selenium.
Our NAC has natural vitamin E

Self production
In HSN we manufacture our own food supplements in a factory that guarantees an internalised closed-chain process where we can ensure complete and continuous traceability of the raw materials used and the development of the product.
This makes it possible to reduce production costs while maintaining and even improving the quality of the product, thanks to the elimination of all the intermediaries that make the final PvP more expensive.
In HSN you will find the highest quality products on the market at the best price. Trust the best!
How to combine NAC (N-Acetyl L-Cysteine) 300mg?
Combine NAC (N-Acetyl-Cysteina) 300mg by EssentialSeries with Milk thistle extract or with Vitamin C 1000mg + Bioflavonoids + Rose Hip.
Nutritional FactsNAC (N-ACETYL-L-CYSTEINE) 300mg - 120 veg caps |
| daily doseper serving |
| Serving size: 1 veg caps | ||
| daily dose: 1 veg caps | ||
| Servings per container: 120 | ||
| Daily amount | |||
|---|---|---|---|
| N-Acetyl L-Cysteine (NAC) | 300mg | ||
| L-Cysteine base | 222.7mg | ||
| Vitamin E | 3.6mg | ||
| of D-alpha-tocopheryl acid succinate | 4.4mg | ||
| Vitamin B2 (as riboflavin) | 0.4mg | ||
| Selenium | 27.5µg | ||
| of L-selenomethionine | 68.5µg | ||
| NRVs (Nutrient Reference Values) established in Regulation (EU) 1169/2011 of 25 October 2011. †† NRVs are not established on this occasion. |
Ingredients
Rice flour, N-acetyl L-cysteine (NAC) (produced by a vegetable fermentation process), vegetable capsule [glazing agent (hydroxypropyl methyl cellulose)], bulking agent (dicalcium phosphate), anti-caking agent (L-leucine), D-alpha-tocopheryl acid succinate (natural vitamin E), riboflavin (vitamin B2), L-selenomethionine.
Warnings
Store in a cool (below 25°C), dry and dark place. Do not exceed the stated recommended daily dose. Keep out of reach of the smallest children. Nutritional supplements should not be used to replace a balanced diet. It is necessary to maintain a varied and balanced diet and a healthy lifestyle. Health claim awaiting European authorization.
How to take NAC (N-ACETYL-L-CYSTEINE) 300mg - 120 veg caps
Take 1 vegetable capsule, 1 time a day.
The product reviews and opinions published reflect only the customers’ views and experiences. HSN does not verify or endorse such comments or claims, and is not responsible for the content provided in the reviews. Statements regarding food supplements have not been evaluated by the EFSA (European Food Safety Authority) and are not intended to diagnose, treat, cure, or prevent any disease or medical condition.
The product reviews and opinions published reflect only the customers’ views and experiences. HSN does not verify or endorse such comments or claims, and is not responsible for the content provided in the reviews. Statements regarding food supplements have not been evaluated by the EFSA (European Food Safety Authority) and are not intended to diagnose, treat, cure, or prevent any disease or medical condition.
A satisfied customer says:
Great
Laura 05/02/2026
I love this product, whenever we finish it we always buy it again, it is a product that we always have at home.
Show original languageA critical customer says:
I have not noticed any effect
María jesús 28/10/2025
I have just finished the bottle and have not noticed any effect. Hopefully its antioxidant power as a glutathione precursor is beneficial to the body. I will continue to take it, but in powder form.
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Very good
Enrique 24/02/2026
Much cheaper than in supermarkets. In addition, it is taken in pills and not efeverscente form, which to my taste makes it much more comfortable. It works very well for my needs.
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Collagen supplement
Ana 16/02/2026
I take it as a complementary amino acid to taking hydrolyzed collagen. Its sweet taste makes it easy to take.
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A basic
Ana 16/02/2026
In addition to helping to eliminate mucus during colds (I rarely have them), as an anti-aging product, it is not missing in my daily supplementation.
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Good value for money
Maria 14/02/2026
My nutritionist recommended it to me to detoxify my liver and it works quite well. It is easy to take as you need one capsule a day.
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Great
Laura 05/02/2026
I love this product, whenever we finish it we always buy it again, it is a product that we always have at home.
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