Pure Encapsulations NAC 600mg 90 Capsules is a food supplement providing 600 mg of N-acetyl-L-cysteine (NAC) per vegetarian capsule. NAC is a modified form of the amino acid L-cysteine, one of the building blocks the body uses to produce the antioxidant glutathione.

Key Features

• 600 mg per capsule: each capsule delivers the full 600 mg dose in one go, useful if comparing against products that split this amount across two or more capsules.
• Free-form NAC with a minimal ingredient list: alongside the active ingredient, this product contains only ascorbyl palmitate and a vegetarian capsule shell.
• Flexible dosing: take 1 capsule, 1 to 3 times daily, between meals, so intake can be adjusted to individual needs or a healthcare professional's advice.
• Free from major allergens: free from gluten-containing cereals, eggs, dairy, soya and other listed allergens, and suitable for vegans and vegetarians.

What is NAC and how is it related to glutathione?

N-acetyl-L-cysteine (NAC) is a modified form of the amino acid L-cysteine. Cysteine is one of the building blocks the body uses to produce glutathione, a naturally occurring antioxidant.

Is this the same NAC used in hospitals to treat paracetamol overdose?

NAC used in a hospital setting to treat paracetamol overdose is a licensed medicine, given at much higher doses under medical supervision. This product is a food supplement and is not intended to treat, diagnose or replace emergency medical treatment. If you suspect a paracetamol overdose, seek emergency medical help immediately.

How much NAC does the maximum daily dose provide?

Taking the maximum suggested amount of 3 capsules a day provides 1,800 mg of NAC in total, taken as 1 capsule between meals up to three times a day, or as directed by a healthcare professional.

Can I take this if I'm pregnant, breastfeeding, or on medication?

If you are pregnant, breastfeeding, have a health condition, or are taking any medication, speak to a healthcare professional before taking this product, as advised on the label.

Each vegetarian capsule contains 600 mg of N-acetyl-L-cysteine (NAC), a modified form of the amino acid L-cysteine. A Nutrient Reference Value has not been established for NAC.

Other ingredients: ascorbyl palmitate; vegetarian capsule shell (hydroxypropyl methylcellulose).

This product is free from gluten-containing cereals, crustaceans, eggs, fish, milk, molluscs, peanuts, soybeans and celery, and is suitable for vegans and vegetarians. It is made without genetically modified ingredients.

Take 1 capsule, 1 to 3 times daily, between meals, or as directed by a healthcare professional.

Swallow each capsule whole with water.

If you are pregnant, breastfeeding, have a health condition, or take any medication, speak to a healthcare professional before use.

Food supplements should not be used as a substitute for a varied and balanced diet.

Do not exceed the stated daily dose.

Use only if the safety seal is intact. Keep out of reach of children.

NAC supplements have been associated with mild gastrointestinal symptoms, such as nausea, stomach upset or diarrhoea, in some people. This is not a complete list of possible reactions; if you experience any adverse effect, stop taking the product and seek medical advice.