N-Acetyl L-Cysteine (NAC) is a naturally occurring amino acid that can support your training goals. Our 100% NAC Amino Acid is a super-convenient soluble powder that can be easily added to your usual shakes and smoothies.

Performance Advisory Board

Bringing together world-class scientists, doctors, and athletes to shape innovation at Myprotein — combining cutting-edge research with real-world testing to create solutions that actually deliver, for everybody. Find out more about our Performance Advisory Board.

• 100% N-Acetyl L-Cysteine
• Important amino acid
• Add to shakes or smoothies

Nutritional information may vary depending on flavour.

NAC, like other amino acids, occurs naturally in proteins.

Our powder is ideal for anyone looking to increase their cysteine intake in an acetylated form.

When to take 100% NAC Amino Acid?

We recommend taking 500mg daily - just add 1 mini scoop (500mg) to your preferred amount of water or fruit juice. As it's Unflavoured, it's ideal for adding to your everyday shake.

What does 100% NAC Amino Acid work well with?

Boost your intake of BCAAs with our Essential BCAA 4:1:1 tablets - our highest-strength amino-acid supplement, with a ratio of 4:1:1 of leucine, isoleucine, and valine.

This product is 100% N Acetyl L Cysteine with nothing added or taken away.

Why has the packaging changed?

We're excited to introduce new packaging as part of our redesign, but you might still see our previous packaging in your orders as we prioritise reducing waste. Rest assured, it's the same high-quality product.