NOW NAC Pure Powder 600 mg – 4 oz

NOW NAC Pure Powder is a single-ingredient N-acetyl cysteine supplement designed to support cellular health, normal immune function, and the body's natural antioxidant defenses. NAC is a stable form of the sulfur-containing amino acid cysteine and plays a role in maintaining protein structures. Each 1/4-level-teaspoon serving provides 600 mg of pure NAC with no additional ingredients. NAC supports the natural formation of glutathione, an important free-radical-scavenging compound that helps maintain balanced immune system function. NAC may also help support healthy brain and neuronal tissues. With approximately 188 servings in each 4 oz bottle, this concentrated amino acid powder offers flexible, routine-friendly supplementation for adults. For a ready-to-take tablet, see NOW NAC 1000 mg Tablets, or browse the full Vitamins A–Z collection.

Key Benefits

• Supports the body's natural production of glutathione
• Promotes normal, balanced immune system function
• Helps maintain cellular health and antioxidant defenses
• Supports healthy brain and neuronal tissues
• Provides 600 mg of pure N-acetyl cysteine per serving
• Offers a concentrated powder formula with no other ingredients
• Provides approximately 188 servings per container for long-lasting value

Product Details

• Size: 4 oz (113 g), approximately 188 servings
• Serving size: 1/4 level teaspoon (600 mg), providing 600 mg of pure N-Acetyl Cysteine
• Main ingredient: N-Acetyl Cysteine (NAC) only; no other ingredients
• Flavor: Unflavored with a naturally strong taste
• Dietary features: Non-GMO, dairy free, egg free, soy free, nut free, and made without gluten
• Quality: Manufactured under GMP quality standards and packaged and quality tested in the United States

Suggested Use

Take 1/4 level teaspoon one to three times daily. Because NAC powder has a strong taste, mix it with an acidic juice such as orange or cranberry juice. Mix each serving immediately before use. Keep the bottle tightly closed between uses and retain the freshness packet inside until the container is empty. Do not consume the freshness packet. For adults only. Consult a healthcare professional if pregnant, nursing, taking medication, especially nitroglycerin, or managing a medical condition. Keep out of reach of children. Store in a cool, dry place after opening. Natural speckling or black spots may develop through normal oxidation; according to the product information, this does not indicate mold or affect product quality.

Why Choose NOW Foods

A powder is the most flexible way to take NAC: measure a quarter-teaspoon, mix it into orange or cranberry juice to soften the strong taste, and adjust from one to three servings a day. With approximately 188 servings per 4 oz bottle and no added ingredients, it is a concentrated, transparent choice for adults who prefer powders over tablets.

For NAC's precursor amino acid in tablet form, consider NOW L-Cysteine 500 mg with Vitamins C and B6.

Frequently Asked Questions

Q: How much NAC is in each serving?

A: Each 1/4-level-teaspoon serving provides 600 mg of pure N-acetyl cysteine.

Q: What is NAC?

A: NAC is N-acetyl cysteine, a stable form of the sulfur-containing amino acid cysteine.

Q: How does NAC support antioxidant defenses?

A: NAC supports the natural formation of glutathione, an important free-radical-scavenging compound.

Q: How do I take it?

A: Take 1/4 level teaspoon one to three times daily, mixed with an acidic juice such as orange or cranberry juice, and mix each serving immediately before use.

Q: How many servings are in the container?

A: The 4 oz container provides approximately 188 servings.

Q: Why mix it with juice?

A: NAC powder has a naturally strong taste, so mixing it with an acidic juice such as orange or cranberry juice makes it easier to take.

Q: Are there any other ingredients?

A: No. This is a single-ingredient formula with no additional ingredients.

Q: What are the black spots that sometimes appear in the powder?

A: Natural speckling or black spots may develop through normal oxidation; according to the product information, this does not indicate mold or affect product quality.

Q: Should I eat the freshness packet?

A: No. Retain the freshness packet inside the bottle until the container is empty, and do not consume it.

Q: Should I talk to a healthcare professional first?

A: Yes, especially if you are pregnant, nursing, taking medication, especially nitroglycerin, or managing a medical condition.

Add NOW NAC Pure Powder to your daily routine for flexible, concentrated glutathione and antioxidant support.

This product is a non-prescription wellness product. It has not been evaluated by the FDA and is not intended to diagnose, treat, cure, or prevent any disease. Always consult a qualified healthcare professional before use.