N-acetyl cysteine (NAC) is the rate-limiting precursor to glutathione, the body's master antioxidant. Well-evidenced for respiratory mucus, OCD/trichotillomania, and acetaminophen toxicity (clinical IV use).
NAC significantly reduced acute exacerbations of chronic bronchitis (relative risk reduction 23%) and improved symptoms.
NAC produced significant reductions in hair-pulling symptoms vs placebo, with 56% of NAC patients showing 'much improved' status.
NAC supplementation significantly improved sperm count, motility, and morphology in infertile men with oxidative stress markers.
We prioritize randomised controlled trials and meta-analyses over single observational studies. Animal and in-vitro data are listed as "mechanistic", they suggest direction, not human effect size.
We don't cherry-pick favourable studies, omit conflicting evidence, or cite industry-funded trials without flagging the conflict of interest where known.
The research is one thing, what to take, at what dose, paired with what, is another. We compose stacks that turn the evidence into a daily routine.
Studies referenced are real published research. Summaries are paraphrased for accessibility, for exact methods and full text, click through to PubMed. Educational use only, not medical advice. Consult a qualified clinician before starting any new supplement.