Supports glutathione levels for immune and antioxidant defense.
Effective Dose
600-1200mg daily
Onset
Days
Cost
Budget
Cycle
NAC can be taken daily without cycling.
7 things you need to know
What it does
Supports glutathione levels for immune and antioxidant defense.
Worth it?
6.5/10. N-Acetyl Cysteine (NAC) is a precursor to glutathione, a powerful antioxidant. While not a direct immune booster, it may indirectly support immune function by helping to maintain antioxidant balance. It's a reasonable addition to a daily stack, but is not a first-line choice.
How much to take
600-1200mg daily
Price
Cheap (under $15/month)
How fast it works
Builds up over days to weeks
Safety
Check if: gastrointestinal discomfort (nausea, diarrhea), may interact with certain medications (consult a doctor)
What people say
Most users don't report noticeable acute effects. Some may experience improved energy levels or a general sense of well-being after consistent use.
NAC is a synthetic derivative of the naturally occurring amino acid L-cysteine, and was first synthesized in the 1960s.
"Most users don't report noticeable acute effects. Some may experience improved energy levels or a general sense of well-being after consistent use."
Research backing for this ingredient
Some evidence, more research needed
Limited
Not yet
Generally accepted with some debate
"NAC is well-researched, but the evidence for its immune benefits in healthy individuals at typical supplement doses is moderate. Its primary benefit is as a glutathione precursor, supporting antioxidant defenses, which indirectly supports immune function. Evidence is stronger for specific conditions."
NAC is a precursor to glutathione, a powerful antioxidant in the body. Supplementing with NAC can help increase glutathione levels, which may protect cells from damage and support immune function. Some evidence suggests it can also help with respiratory conditions and liver health.
Products below minimum dose are likely ineffective
When
Any time
How
600-1200mg daily
Food
Can be taken with or without food.
Noticeable effects may take several days or weeks of consistent use as glutathione levels gradually increase.
NAC can be taken daily without cycling.
Check for specific interactions.
N-Acetyl Cysteine (Immune) is categorized as a amino acid.
Scientific consensus score: 7/10.
Evidence quality: MODERATE.
Add N-Acetyl Cysteine (Immune) to your stack analyzer or compare it with other ingredients.
Not medical advice. Always consult a healthcare provider.