N-Acetyl L-Cysteine (NAC)

Inside the pouch you’ll find 90 vegan capsules of Alpha01 NAC N-Acetyl L-Cysteine, the N-acetylated form of the amino acid L-cysteine. One capsule is the serving, and it gives you 600mg of NAC with 2.5mg of BioPerine black pepper extract. The ingredients list has three entries: N-acetyl L-cysteine, the capsule shell and BioPerine black pepper extract.

Because NAC is an amino acid derivative and not a vitamin, it has no Nutrient Reference Value, so the panel shows 600mg with the note “No NRV established” where a percentage would be. BioPerine is a branded black pepper extract. Our guide, What Is a NAC Supplement? N-Acetyl L-Cysteine 600mg Explained, explains what the three letters stand for and what one capsule gives you.

Take one capsule a day, as the label directs. With 90 capsules in the pouch, it lasts three months for £9.99, about 11p a day. The capsule shell is hypromellose, a plant-derived cellulose, and you’ll find NAC alongside our other amino acids in our amino acids range.