What it is
N-Acetyl Cysteine (NAC) is a supplement that acts as a precursor to glutathione, a potent antioxidant. It is primarily used to support the body's natural detoxification processes, particularly in the liver and lungs.
Supplement · Liver & Hepatoprotective
N-Acetyl Cysteine (NAC)
600 mg · vegan · gluten-free · 90 caps
sluggish-detoxificationfatigueskin-breakouts liverlungskidney
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How it works
NAC replenishes intracellular glutathione levels, which are crucial for neutralizing free radicals and supporting the enzymatic detoxification pathways in the liver. It also exhibits mucolytic properties, aiding in the breakdown of mucus in the respiratory tract.
Who should take it
Adults looking to address sluggish detox, fatigue, skin breakouts. Particularly relevant for people who prefer a targeted single ingredient and who have ruled out an underlying condition that needs medical care first.
Avoid / careful
Pregnant or nursing women without clinician oversight. People on prescription medication affecting the same pathway should consult a doctor before combining. Side effects are uncommon at recommended doses but mild GI upset can occur when starting.
When to take it
Morning
Noon
Evening
Night
How to take it
With food
Empty stomach
Before food
FAQs
Frequently asked
How long does it take for NAC to show effects on detox markers?
For detox markers, effects typically become measurable within 4-8 weeks of consistent use.
Can NAC help with skin breakouts?
Yes, by supporting liver detoxification, NAC can indirectly help manage skin issues like acne breakouts.
Is NAC safe for long-term use?
NAC is generally considered safe for long-term use at recommended doses, but consulting a healthcare professional for personalized guidance is always advised.
Research
6 studies · 2010–2024
Evidence grade
ABCD
A · A · emerging-to-moderate human evidence for liver detoxification and elimination
From the blog
Editorial notes
SacredBod's longer take on N-Acetyl Cysteine (NAC) — context the structured blocks above don't capture.
About N-Acetyl Cysteine (NAC)
N-Acetyl Cysteine (NAC) is a liver & hepatoprotective supplement used to support liver detoxification and elimination. Glutathione precursor for liver, lungs and detox. It is available in capsule form and dosed for adults in India and internationally. As a western-tradition entry in the SacredBod catalog, it is positioned as a single-ingredient option that can be used on its own or layered into a broader protocol. N-Acetyl Cysteine (NAC) works through the mechanisms characteristic of its class — see the mechanism and research sections for detail. It primarily acts on the liver, kidneys, lymphatic system, and effects are dose-dependent, typically becoming measurable within 4-8 weeks for detox markers. Consistency matters more than dose size for this category.
Evidence
N-Acetyl Cysteine (NAC) carries an evidence grade of A in the SacredBod catalog, reflecting strong human evidence for liver detoxification and elimination. Glutathione precursor for liver, lungs and detox. Benefits are cumulative rather than immediate, typically becoming noticeable within 4-8 weeks for detox markers, and individual response varies.
Dosing
A typical dose is 600 mg, taken with food, usually in the morning. Start at the lower end, assess tolerance, and stay consistent; more is not automatically better.
Cautions
Pregnant or nursing women without clinician oversight. People on prescription medication affecting the same pathway should consult a doctor before combining. Side effects are uncommon at recommended doses but mild GI upset can occur when starting.
Who it’s for
Adults looking to address sluggish detox, fatigue, skin breakouts. Particularly relevant for people who prefer a targeted single ingredient and who have ruled out an underlying condition that needs medical care first.
As part of the Liver & Hepatoprotective category, N-Acetyl Cysteine (NAC) can be used on its own or layered into a broader protocol — see the Goes with panel for evidence-aligned pairings.
Added to your stack.