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NAC (N-ACETYL-L-CYSTEINE) 300mg

Essential Series

Remarkable aspects:

No Preservatives

No Preservatives

Egg Free

Egg Free

Without GMOs

Without GMOs

Gluten Free

Gluten Free

Lactose Free

Lactose Free

Suitable for Vegans

Suitable for Vegans

Dairy Free

Dairy Free

Suitable for Vegetarians

Suitable for Vegetarians

Soy Free

Soy Free

Fish Free

Fish Free

With no artificial colourings

With no artificial colourings

Nut Free

Nut Free

Product information

  •  300 mg of NAC per serving.
  •  In vegan-friendly vegetable capsules.
  •  With Selenium and Vitamin E.
  •  Just 1 capsule per daily dose.
  •  Lasts 4 months!

How to take

Best time to take

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Full description
Table of contents
    •  300mg of NAC per serving.
    •  In vegetable capsules suitable for vegans.
    •  With Selenium and Vitamin E.
    •  1 capsule per daily dose.
    •  Lasts 4 months!

    Fplus 1 NAC

    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.

    Fplus 2 NAC

    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

    Fplus 3 NAC

    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.

    Product analysis

    Analysis from certified external laboratories

    In this section you’ll be able to view and download the analysis of the product that has been made by independent and certified laboratories, offering you the most accurate and detailed information of each.

    The questions are asked by users and the answers are prepared by the HSN team for informational purposes. The information provided does not replace the advice or care of a healthcare professional. References to 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. HSN reserves the right to review or update the answers when necessary.

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    Questions from other clients (8)

    What our customers say about the product

    A satisfied customer says:

    The perfect ally

    Alex | 27/03/2026

    I bought HSN's NAC on the recommendation of my nutritionist to improve liver detoxification and strengthen the immune system, and the experience has been impeccable. What I value most is that it comes in 300mg vegetable capsules, a very versatile dose that allows you to adjust your daily intake as needed.

    Compré el NAC de HSN siguiendo la recomendación de mi nutricionista para mejorar la detoxificación hepática y reforzar el sistema inmune, y la experiencia ha sido impecable. Lo que más valoro es que viene en cápsulas vegetales de 300mg, una dosis muy versátil que permite ajustar la toma diaria según necesites.
    Has the review helped you?

    A 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.

    Acabo de terminarme el bote y no he notado ningún efecto. Esperemos que su poder antioxidante como precursor del glutation sea beneficioso para el organismo. Seguiré tomándolo, pero en formato polvo.
    Has the review helped you?

    Score of 4.8 / 5.00 of 666 real reviews

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    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.

    See more See less

    Cristian |

    Verified purchase

    NAC (N-ACETYL-L-CYSTEINE) 300mg

    Very good

    Very good, I have already bought a few bottles and the truth is that they work quite well.

    Muy bueno, llevo ya unos cuantos botes comprados y la verdad es que funcionan bastante bien.
    Has the review helped you?
    General satisfaction (5.0 / 5)
    Packaging (5.0 / 5)
    Value/Price (5.0 / 5)
    Results (5.0 / 5)

    MIGUEL ANGEL |

    Verified purchase

    NAC (N-ACETYL-L-CYSTEINE) 300mg

    Effectido

    It is very good for me and it is useful for mucus and allergies, both my wife and I take it, which is very useful for this spring time.

    Me va muy bien y me sirve tanto para la mucosidad como para alergias, lo tomamos tanto mi mujer como yo, que para este tiempo de primavera me sirve muy bien
    Has the review helped you?
    General satisfaction (5.0 / 5)
    Packaging (5.0 / 5)
    Value/Price (5.0 / 5)
    Results (5.0 / 5)

    Alex |

    Verified purchase

    NAC (N-ACETYL-L-CYSTEINE) 300mg

    The perfect ally

    I bought HSN's NAC on the recommendation of my nutritionist to improve liver detoxification and strengthen the immune system, and the experience has been impeccable. What I value most is that it comes in 300mg vegetable capsules, a very versatile dose that allows you to adjust your daily intake as needed.

    Compré el NAC de HSN siguiendo la recomendación de mi nutricionista para mejorar la detoxificación hepática y reforzar el sistema inmune, y la experiencia ha sido impecable. Lo que más valoro es que viene en cápsulas vegetales de 300mg, una dosis muy versátil que permite ajustar la toma diaria según necesites.
    Has the review helped you?
    General satisfaction (5.0 / 5)
    Packaging (5.0 / 5)
    Value/Price (5.0 / 5)
    Results (5.0 / 5)

    Enrique |

    Verified purchase

    NAC (N-ACETYL-L-CYSTEINE) 300mg

    Very good

    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.

    Mucho más barato que en supermercados. Además, se toma en pastillas y no de forma efeverscente, lo que a mi gusto lo hace bastante más cómodo. Para mis necesidades me va muy bien.
    Has the review helped you?
    General satisfaction (5.0 / 5)
    Packaging (5.0 / 5)
    Value/Price (5.0 / 5)
    Results (5.0 / 5)

    Ana |

    Verified purchase

    NAC (N-ACETYL-L-CYSTEINE) 300mg

    Collagen supplement

    I take it as a complementary amino acid to taking hydrolyzed collagen. Its sweet taste makes it easy to take.

    Lo tomo como aminoácido complementario a la toma del colágeno hidrolizado. Su sabor dulce hace que sea fácil de tomar.
    Has the review helped you?
    General satisfaction (5.0 / 5)
    Packaging (5.0 / 5)
    Value/Price (5.0 / 5)
    Results (5.0 / 5)
    See all reviews
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