Skip to content

NAC Supplement (N-Acetyl-L-Cysteine)

Original price $24 - Original price $144
Original price $72
$24
$24.00 - $122.40
Current price $24

Key Benefits:†

  • Active ‘L’ form of N-Acetyl-Cysteine (NAC) in a Free Form
  • Key component of glutathione formation
  • Supports healthy liver, lungs, immune system & detoxification
🎉 Buy One Get One Sale 🎉
  1. Add one of this product to your cart.
  2. In your cart, add a second one.
  3. At checkout, enter code BOGO to receive the discount.
Note: Offer not valid on subscription orders. Reward points can still be applied.
Purchase Type
graphic of vile

Third Party Tested

graphic of delivery truck

Free Shipping

graphic of check mark

60-day Return Policy

Graphic of capsule being opened

High End Ingredients

Your cells are constantly under attack. Free radicals and oxidative stress from environmental toxins can significantly burden your liver.

Even normal processes like hormone metabolism contribute to toxicity. In our modern world, maintaining healthy antioxidant status and detoxification pathways is essential for your health.

NAC by Seeking Health provides 500 mg of N-acetyl-L-cysteine per vegan capsule.

NAC (N-acetylcysteine) is an important sulfur-containing amino acid. By facilitating glutathione production, NAC supports healthy detoxification and antioxidant function in virtually every cell of the human body. NAC also has the unique ability to support the normal break up of mucus in the lungs, making it popular for lung and immune health protocols.

NAC acts directly and indirectly as an antioxidant. Its unique chemical structure contains an outer sulfur group. This allows NAC to act as an antioxidant, particularly for NO2 and hydroxyl radicals.

NAC is also a bioavailable source of cysteine. This rate-limiting amino acid is needed to build glutathione, which acts as your body’s master antioxidant.

Your liver requires glutathione for multiple functions. Glutathione can readily donate electrons to act as a potent antioxidant. It also binds toxins, drugs, and hormones so your body can excrete them. The World Health Organization (WHO) recognizes NAC as a substance that supports liver cell health, especially with exposure to compounds known to cause liver damage.

It is well known that cells (particularly immune, lung, reproductive, and brain cells) function optimally when glutathione levels are in peak range. However, glutathione levels decline naturally with age. They are depleted even faster when the body does not have enough cysteine.

NAC by Seeking Health supports healthy glutathione levels by providing a bioavailable source of cysteine.

Use of NAC can also support lung and respiratory health. It has been well established that NAC supports the normal thinning of lung mucus. It does this by interfering with the disulfide protein bonds found in mucus. This allows mucus to be more easily expelled from the lungs.

NAC supports healthy:

  • Lung tissue
  • Respiratory function
  • Glutathione production
  • Antioxidant status
  • Immune health
  • Hormone balance
  • Liver health
  • Detoxification
  • Oxidative damage defenses
  • Brain & Nerve health
  • Reproduction & Fertility
  • Healthy aging processes

In most supplement forms found on the market, glutathione may not be as well absorbed or utilized as NAC. Supplementing with high-quality liposomal glutathione may not be an option for everyone due to the increased cost and strong sulfur taste. NAC is a cost-efficient way to support natural glutathione and antioxidant activity in your body.

NAC by Seeking Health supports healthy glutathione production, detoxification, respiratory health, and much more. Always keep a bottle in your immune toolbox–this popular product tends to fly off the shelves!

Key Ingredients

Inside the Uncompromising Quality of Our Ingredients

×
  • NAC (N-Acetyl-L-Cysteine)
    A sulfur-containing amino acid compound that is a precursor to glutathione, giving it powerful antioxidant and detoxification properties. NAC also has the unique ability to support the normal breakup of mucus in the lungs.

Suggested Use

As needed, take 1 capsule any time of day or night with food and 8 oz of filtered water. Capsule may be opened and contents mixed into juice or a bite of food. Use as directed by your healthcare professional.

Suitable for

Bariatric, methyl sensitive, breastfeeding, pregnancy, vegetarian, vegan, ages 4 and up

Delivery Method

Capsules

Age Suitability

Adults

How to Store

Keep closed in a cool, dry place out of reach by children.

What our customers say

Real reviews from real customers.

4.9
Rated 4.9 out of 5 stars
Based on 463 reviews
Total 5 star reviews: 437 Total 4 star reviews: 21 Total 3 star reviews: 3 Total 2 star reviews: 1 Total 1 star reviews: 1
98%would recommend these products
Reviews Summary
Customers say this supplement is easy to take with smaller capsules and minimal odor compared to other brands. Many reviews mention consistent daily use as part of their routine. Common feedback includes appreciation for the product quality and value, particularly during promotional offers. Reviews indicate users prefer this specific brand over others, noting differences in effectiveness. While most report positive experiences, a few users mention individual sensitivities. Many appreciate the convenient capsule format and incorporate it into their seasonal wellness routines.
Customers Talked About
Rating
Ratings
463 reviews
  • NF
    NAN F.
    Verified Buyer
    Reviewing
    NAC Supplement (N-Acetyl-L-Cysteine)
    I recommend this product
    Rated 5 out of 5 stars
    2 hours ago
    Clean and easy to take

    This NAC is great. I take it daily with no issues and feel like it helps me detox.

  • Z
    Ziyad
    Verified Reviewer
    Reviewing
    NAC Supplement (N-Acetyl-L-Cysteine)
    I recommend this product
    Rated 5 out of 5 stars
    2 days ago
    N-Acetyl-L-Cysteine

    NAC has many health benefits

  • A
    Amy
    Verified Buyer
    Reviewing
    NAC Supplement (N-Acetyl-L-Cysteine)
    I recommend this product
    Rated 5 out of 5 stars
    1 week ago
    Love it

    Love this NAC for my estrogen and mold detox. The dose is low enough that its nit giving me migraines but high enough to feel the difference throughout the day. I just ordered another bottle.