Added to your basket

Sorry, there seems to have been an error. Please try again.


Subtotal: ( items in your basket)

N Acetyl L Cysteine - Unflavoured - 100g
N Acetyl L Cysteine - Unflavoured - 100g

N Acetyl L Cysteine

GBP 7.99


28 reviews

Item limited to max quantity of 5000

( 0 item is in your basket items are in your basket )

25% off this product |
Enter code: FAST

Save 25% on some of our best-selling products.
Offer applies only to items with this messaging.


In stock


Usually dispatched within 24 hours

Live Chat

Average connection time 25 secs

  • Product Overview

    What is N-Acetyl L-Cysteine?

    N-Acetyl L-Cysteine is an altered form of the non essential amino acid L-Cysteine which has been attached to an acetyl group.

    Benefits of N-Acetyl L-Cysteine

    N-Acetyl L-Cysteine (often abbreviated NAC) is a white soluble powder which can be easily mixed with water or your other supplements. This products is 100% N-Acetyl L-Cysteine with nothing added or taken away from it.

    Who is N Acetyl L-Cysteine Suitable for?

    N-Acetyl L-Cysteine is ideal for anyone looking to increase their intake of cysteine in an acetylated form. As a dietary supplement we recommend consuming 500mg 1-3 times a day.

    Please note that the labelling on this product is provided in English as a minimum. French, Italian, German, Spanish, Danish, Swedish and Finnish may also be present on a product by product basis.

    Key Benefits
    • 100% N-Acetyl L-Cysteine (NAC)
    • Soluble white powder
    • Acetylated form of L-Cysteine
  • Suggested Use

    As a dietary supplement we recommend consuming 500mg, 1 to 3 times daily.

    Add 1 MP mini scoop (500mg) to your preferred amount of water or fruit juice and consume immediately.

    1 x level MP Plastic Scoop (mini) weighs 500mg (0.5g)

  • Ingredients

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

  • Nutritional Information

    100% N Acetyl L Cysteine.

Customer Reviews


28 reviews

5 21
4 6
3 0
2 0
1 1
See all reviews

Top Customer Reviews

Where reviews refer to foods or cosmetic products, results may vary from person to person. Customer reviews are independent and do not represent the views of Myprotein.


Prompt delivery and good product Mixes reasonably well in warm juice.
Goes Well With:
Pomegranate juice.


Pretty sure this product has helped my liver recover frm some pretty harsh chemicals I wz suffering quite strong liver distress after finishing medication lol but almost straight away noticed improvement after product cleared up within wk
Goes Well With:
Wz using pink grapefruit juice with is my morning juice anyway but dose help disguise taste tip mix with a little hot water first tip I wz also mixing my unflavoured creatine aswel see first tip

n-acetyl l-cysteine

Among other beneficial effects n-acetyl l-cysteine is also potent in exerting his antioxidant activity.
Goes Well With:
Resveratrol, green tea extract, alpa-lipoic acid, vit C rosehip, Selenium...

good product

There was no scoop with it and that was disappointing other than that it it a good product.

always use when sick

Yeah the smell is bad and taste is not good either but mixing it in strong tea makes it OK. I use it whenever under stress and if I feel like I might get sick, I take several doses a day. Seems to work as I had several times I felt I might get sick, took a lot of cystine and was OK the next day.
Goes Well With:
other antioxydants

Very short best before date

The best before date on these will expire before you've finished the pack. If you want to send it back for a refund you'll be expected to pay for return delivery.


Bought this as i was a regular big drinker, so as i decided to do go sober for macmillan i thought id give my liver a helping hand. Smells funky but mixed with water taste good sort of a citrus taste. Only been on it for a week so not noticed any changes yet.
Goes Well With:

don't drink without it!

This is now an essential item in my cupboard. I drink far too much alcohol. I know it's harmful and addictive and it doesn't help my training at all. I heard this was good to aid liver detox and gave it a try a year or so ago. Now I use it everytime I have more than 2 drinks in 2hrs. 1 mini scoop after 2-4 drinks, 1 mini scoop after the session. If it's a big afternoon session like a wedding, I'll take 1 mini scoop somewhere in the middle. NAC dissolves easily in warm water and slowly in cold water. It adds an acidic, lemon juicey flavour. So I liek to add it to drinks that are far too sweet for my taste, where it helps to balance them out. A favourite is 2 mini scoop NAC in one can of the flavoured red bull drinks, diluted 2:1 or more with fizzy water. That makes what would be an unpleasantly sweet drink into something more like the lime/blueberry/tropical fruit drink it is imitating. NAC doesn't alter how you get affected by alcohol. NAC does NOT allow you to drink and drive, or be any more competent, sensible or charming while under the influence. It does (for me at least) markedly reduce a hangover, if you also drink plenty of water. Nothing makes you hangover proof, but the difference with NAC is so great, for me it's the difference between being at least half-useful the following day, or writing it off. Please drink responsibly! If you choose not to, I recommend that you try NAC.
Goes Well With:
Milk thistle + ALCAR + red bull + lots of water

It works!

This stuff definitely works when used to clear up my blocked sinuses (made worse by living with a smoker!!). I tried it because I read about its use in hospitals to clear uo blocked lungs and mucus generally, and it might protect against the effects of smoke. So I thought it might work on my nasal passages too. I get an unblocked nose and my sense of smell and taste back again. So basically it works for me for that particular problem. Takes a couple of days. I don't like taking anything all the time so I have breaks - and then take it when needed. It can deplete zinc and copper so taking a multivitamin makes sense.
Goes Well With:
B2, Vitamin C

A 'must have' supplement!

They give you this in hospital, before heart surgery to protect you from the damaging effects of the heart-lung machine. If it can do that it must be good! (I write from experience with that too!)
Goes Well With:
Open heart surgery! ;)

Back to top