Is this the genuine, authentic product?

Yes. It is identical to what you would pay full price for anywhere else, sourced through our authorized supplier relationships.

How is the price below retail?

We buy direct, with nobody in the middle taking a cut, and we sell it for close to what we paid. You see the price privately because you have unlocked the Vault.

How fast does it ship?

Orders placed before 12pm PT are processed the same day and ship within two business days. Shipping is free over $89, and a flat $9.95 under that.

You have 30 days after it arrives to request a return. Product must be unused, in its original packaging, with proof of purchase, and return shipping is paid by you. Find it cheaper anywhere in Canada and we will match the price.

Sisu Sisu - NAC 600mg, 120 vcaps

Name: Sisu Sisu - NAC 600mg, 120 vcaps
Brand: Sisu
SKU: sisu-nac-600-mg
Price: 40.98 CAD
Availability: InStock

Sisu NAC - 600 mg - N-acetyl-L-cysteine is a natural, sulphur-containing amino acid and a powerful antioxidant that has shown itself to be an effective detoxifier and a natural strengthener of the immune system. As a detoxifier, NAC can protect against the toxic effects of some heavy metals, herbicides and other environmental pollutants, and is useful in fighting certain cancers and reducing the toxic effects of some chemotherapy drugs. As an antioxidant, NAC can play a role in heart disease prevention by naturally lowering levels of lipoprotein buildup, and by fighting free-radical buildup following a heart attack. NAC has also proven effective as a fighter of bronchopulmonary disorders such as chronic bronchitis, asthma and cystic fibrosis, by breaking up mucus and facilitating its elimination.

Price

Regular Canadian retail price: $40.98 CAD. Price Vault members pay below retail on this product. Member pricing is private and shown after a free opt-in, with no membership fee, no minimum order and no subscription.

In stock. Free shipping across Canada on orders over $89, flat $9.95 under that. 30 days to request a return, with return shipping paid by the customer. Ships from Victoria, BC.

See member pricing on Sisu Sisu - NAC 600mg

Why people keep reordering it

Clean fuel: Quality protein and greens without the junk.
Easy to mix: Blends smooth into water, milk or a smoothie.
Recovery and everyday nutrition: Supports muscle, energy and filling dietary gaps.

Best suited to: someone wanting to raise glutathione, chest feels thick and heavy through winter, older adults whose antioxidant reserve has drifted down.

What the research supports

Each capsule holds 600 mg of N-acetyl-L-cysteine, the exact unit most human trials use. 120 capsules is four months at one a day.

Mucus-clearing trials use 600 mg a day; some use more.

Mucus clearing (evidence: moderate, from randomized controlled trial): NAC breaks apart the disulfide bonds that make mucus thick and sticky, thinning it so it clears more easily. Trials at 600 mg a day, the dose in one capsule, show this over several weeks to months.
Oxidative stress (evidence: mixed, from randomized controlled trial): Cysteine is what your body needs most to build glutathione, its main internal antioxidant, so more cysteine can restock it when supplies run low. Markers of cell damage shift at 1200 to 1800 mg a day in some trials, not others.

Read the literature: Mucus clearing on PubMed, Oxidative stress on PubMed.

Is it right for you

Worth it if

Someone wanting to raise glutathione: Cysteine is the limiting ingredient in glutathione synthesis, and 600 mg of NAC delivers it in a form that survives the gut far better than swallowed glutathione does.
Chest feels thick and heavy through winter: Thinning and loosening mucus is the effect with the most direct human evidence behind it, and 600 mg once daily is the dose those trials used.
Older adults whose antioxidant reserve has drifted down: Glutathione synthesis falls with age, and repletion trials in older adults are where NAC produces the clearest rise.

Look elsewhere if

An athlete in a key training block: leave it out around the sessions you are trying to adapt to. High-dose antioxidants including NAC can blunt part of the adaptive signal hard training creates. Adequate protein and food-level antioxidants serve better there.
Someone who just wants a general antioxidant: vitamin C or a mixed carotenoid at a fraction of the cost. NAC is specific to the cysteine and glutathione pathway, not a broad free radical sponge.
Anyone on something daily from a pharmacy: clear it with a practitioner before starting, since NAC carries documented interaction cautions and is worth checking rather than assuming.

What to expect

Nothing you can feel. NAC works on a pathway with no sensation attached to it. Taken for mucus, expect thinner and easier-to-clear secretions within several days to a week. Taken for glutathione status, think in weeks of consistent dosing and a blood panel, not a feeling. The capsules smell faintly of sulphur when the bottle is opened, which is the ingredient behaving normally.

How it compares

Compared with a straight glutathione capsule: NAC supplies the limiting raw material and lets the body assemble glutathione where it is needed, which is more reliable than swallowing intact glutathione, most of which is digested before absorption. The tradeoff: It is indirect. Cysteine is only one of the three amino acids glutathione is built from, so if glycine is short this will not fix output on its own. It also smells of sulphur, which intact glutathione does not.
Compared with whey protein as a cysteine source: 600 mg is a countable, dairy-free dose, where whey supplies cysteine as a variable fraction of a protein blend. The tradeoff: Whey also gives you protein and leucine you probably want anyway, and it tastes considerably better than a sulphur-smelling capsule.

Product details

Active ingredient: N-acetyl-L-cysteine (NAC)
Ingredient form: vcaps
Strength: 600 mg
Servings per container: 120
Independent testing: independent third-party labs
Certifications: Non-GMO
Storage: Store in a cool, dry place
Brand: Sisu

How to take it

Take 1 to 2 capsules daily with food, or as directed by your healthcare practitioner.

Store in a cool, dry place away from direct light.
Keep out of reach of children.
Consult a practitioner if you are pregnant, nursing or on medication.

Ingredients

Each vegetarian capsule contains

N-acetyl-L-cysteine (NAC): 600 mg

Non-medicinal ingredients

Magnesium stearate (vegetable), silicon dioxide. Capsule shell: Hypromellose.

Free from

Contains no dairy, wheat, gluten or peanuts.

Interactions and cautions

Medications: May interact with certain prescription medications. Review with your pharmacist if you take daily medication.
Timing: Separate from medications by 2 to 4 hours unless directed otherwise by a healthcare practitioner.
Pregnancy and breastfeeding: Consult a healthcare practitioner before use if pregnant or breastfeeding.
General: Use only as directed. Discontinue and consult a practitioner if you experience an adverse reaction.

This product is not intended to diagnose, treat, cure or prevent disease. Consult a healthcare practitioner before use. Free certified advisors are available at 1-888-386-1211, Mon to Fri, 9am to 5pm PT.

Questions about Sisu - NAC 600mg

Is this the genuine, authentic product?: Yes. It is identical to what you would pay full price for anywhere else, sourced through our authorized supplier relationships.
How is the price below retail?: We buy direct, with nobody in the middle taking a cut, and we sell it for close to what we paid. You see the price privately because you have unlocked the Vault.
How fast does it ship?: Orders placed before 12pm PT are processed the same day and ship within two business days. Shipping is free over $89, and a flat $9.95 under that.
Can I return it?: You have 30 days after it arrives to request a return. Product must be unused, in its original packaging, with proof of purchase, and return shipping is paid by you. Find it cheaper anywhere in Canada and we will match the price.