Viridian Nutrition’s High Potency N-acetyl L-cysteine (NAC) is suitable for vegans and produced via fermentation.

Cysteine is one of 20 amino acids that are the building blocks of proteins used throughout the body. Cysteine is a non-essential amino acid as it is one of 12 amino acids that can be produced naturally by the body. Provided in the form of N-Acetyl-L-Cysteine, it provides stability and increased bioavailability for the body to utilise.

This supplement delivers 600mg of N-acetyl L-cysteine in every vegan capsule.

We are dedicated to maintaining the accuracy of product information. However, as ingredients and usage instructions may change over time, we cannot guarantee complete accuracy. For the most reliable and current details, please refer directly to the manufacturers' information.

Delivery Charges

If your order value is €55 or more, then delivery is free to any destination within the Island of Ireland. Order values of less than €55 will incur a fee of €6.95.

Dispatch & Delivery

Please allow 2-5 working days for your order to be dispatched in Ireland.

In the unlikely event that the item that you ordered is not in stock, we will issue your account with a refund and send the remaining items in your order. 

 *please note weight restrictions apply.

Click & Collect

Unfortunately click and collect is currently unavailable. We are however running a 'call and collect' service, you can see the stores contact details here.

Our Couriers - DPD & GLS

We use two courier companies for our deliveries, DPD and An Post.

DPD offers a one hour predicted delivery window to all customers.

At the checkout simply make the selection of your choice of courier. 

Delivery outside Ireland

 *please note weight restrictions apply.

Unfortunately, we are unable to ship to the UK at the moment. Please note we are also unable to deliver to the U.S., Australia or New Zealand.