Pure Encapsulations NAC 900 mg | N-Acetyl Cysteine Amino Acid Supplement for Lung and Immune Support Liver Antioxidants and Free Radicals* | 120 Capsules

Common questions

Is Pure Encapsulations NAC 900 mg | N-Acetyl Cysteine Amino Acid Supplement for Lung and Immune Support Liver Antioxidants and Free Radicals* | 120 Capsules healthy?

Pure Encapsulations NAC 900 mg | N-Acetyl Cysteine Amino Acid Supplement for Lung and Immune Support Liver Antioxidants and Free Radicals* | 120 Capsules scores 92/100 on Scout's independent analysis of ingredients, additives, and lab results — one of the stronger scores in Scout's catalog. This supplement features N-acetyl-l-cysteine, a high-quality antioxidant known for supporting lung and immune health, with minimal additional ingredients.

How processed is Pure Encapsulations NAC 900 mg | N-Acetyl Cysteine Amino Acid Supplement for Lung and Immune Support Liver Antioxidants and Free Radicals* | 120 Capsules?

Pure Encapsulations NAC 900 mg | N-Acetyl Cysteine Amino Acid Supplement for Lung and Immune Support Liver Antioxidants and Free Radicals* | 120 Capsules is NOVA Group 2: Processed Culinary Ingredients.

Which ingredients drive Pure Encapsulations NAC 900 mg | N-Acetyl Cysteine Amino Acid Supplement for Lung and Immune Support Liver Antioxidants and Free Radicals* | 120 Capsules' score?

In Scout's ingredient-by-ingredient analysis, N-acetyl-l-cysteine, Ascorbyl palmitate count in its favor. The full breakdown, with why each one matters, is in the Key ingredients section on this page.

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Pure Encapsulations NAC 900 mg | N-Acetyl Cysteine Amino Acid Supplement for Lung and Immune Support Liver Antioxidants and Free Radicals* | 120 Capsules

92 Excellent

Analysis updated July 2026 · How Scout scores

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At a glance

Beneficial ingredients 2
Harmful ingredients 0
Category Immunity
Summary

This supplement features N-acetyl-l-cysteine, a high-quality antioxidant known for supporting lung and immune health, with minimal additional ingredients. The formulation is clean, using a simple vegetarian capsule without any artificial additives or harmful substances, which contributes to its high rating.

Key ingredients 3

N-acetyl-l-cysteine
Very Good

N-acetyl-l-cysteine is a powerful antioxidant that supports lung and immune health. It is a high-quality active ingredient known for its ability to replenish glutathione levels, a critical antioxidant in the body. This ingredient is well-regarded for its role in detoxification and reducing oxidative stress.

Benefits

It helps in detoxification processes and supports respiratory health by reducing mucus viscosity.

Ascorbyl palmitate
Good

Beneficial ingredient — whole-food or functional value in this product class.

Benefits

It offers antioxidant properties and helps in maintaining the stability of vitamin C in the product.

See more about Ascorbyl palmitate →
Vegetarian capsule
Neutral

The vegetarian capsule is made from cellulose and water, serving as a delivery vehicle for the active ingredients. It is a clean and minimal processing option compared to gelatin capsules. This ingredient is suitable for vegetarians and does not contribute any significant nutritional value.

Benefits

Provides a plant-based alternative to gelatin capsules, making the product suitable for vegetarians.

See more about Vegetarian capsule →

Processing

Group 2 · Culinary ingredients

Processed Culinary Ingredients

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