Key Benefits

• Delivers 1000 mg of N-acetyl cysteine in each serving.

• Provides a stable, sulphur-containing amino acid.

• Formulated without common allergens for broad suitability.

Start your routine with confidence—N-Acetyl Cysteine (NAC) offers a reliable form of the amino acid cysteine, a sulphur-based building block found in protein structures. This straightforward formula features only NAC as the active ingredient and is carefully crafted without wheat, gluten, soy, milk, egg, fish, shellfish, tree nut, or sesame, making it a versatile choice for a range of dietary needs.

Empowering healthier lives since 1968, NOW Foods began when Elwood Richard, a physical chemist, launched Health House, a chain of health food stores in Chicago. Inspired by his research on physical performance through nutrition, Elwood saw the need for affordable natural products. Facing competition from local supermarkets, he founded his own manufacturing company, ensuring cost-effective, high-quality health foods. NOW Foods, still family-owned, has since become a leading brand in the natural product industry, offering an extensive line of affordable, top-quality products. Elwood's vision of accessible health foods continues to drive the company today.

With our Healf Curation Process, we do the work for you. Shop with confidence knowing that every item has been tried, tested, and curated for you.

Learn more about each step—Brand Discovery, Expert Validation, and Community Testing—here.

N-Acetyl Cysteine (NAC) (1 g), Bulking Agent (Microcrystalline Cellulose), Capsule Shell (Hydroxypropyl Cellulose), Anti-Caking Agent (Stearic Acid (Vegetable Source)), Croscarmellose Sodium, Vegetarian Coating [Hypromellose (Cellulose), Stearic Acid (Vegetable Source), Sunflower Lecithin, Triethyl Citrate, Sunflower Oil] (Gluten), Anti-Caking Agent (Silicon Dioxide)

For allergens, see ingredients in Bold.

Take 1 tablet 1 to 3 times daily.

Store in a cool, dry place after opening.

​For adults only. Consult physician if pregnant/nursing, taking medication (especially nitroglycerin), or have a medical condition. Keep out of reach of children.

Additional Information:

Food supplements and foods sold by Healf should not be used as a substitute for a varied, balanced diet and healthy lifestyle.

If you are pregnant, breastfeeding, have a medical condition, or are taking any medications, please consult with a healthcare professional before use. Use products only if the seal is intact. Store in a cool, dry place, out of the reach of young children. Do not exceed the recommended daily intake.

We make every effort to ensure that product information on our website is accurate and up to date, but packaging and ingredients may occasionally vary from images shown on site. Please refer to the product label and contact Healf before use if you have any questions regarding your specific allergies or intolerances.