People mainly take Glutathione for skin & hair, energy, longevity. Based on 92 first-hand reports and 967 meta-analyses & systematic reviews in the medical literature. Ranked #133 of 1,974 overall.
Of reports that state an outcome, 69% are positive.
Of the people who reported each effect, the share who said it got better.
Systematic reviews and meta-analyses from PubMed, with their published conclusions.
3+ meta-analyses or systematic reviews and 10+ randomized controlled trials in humans. The grade measures how much human research exists — read the conclusions below for what it found.
Conclusion: IV glutathione is contraindicated due to lack of efficacy and side effects. It may work more as an antioxidant in melasma.
PubMed 39444151 ↗Conclusion: However, due to limitations in the methodological quality of the included studies, well-designed and long-term RCTs with large sample sizes are needed. Trial registration: PROSPERO: CRD42021251969.
PubMed 39478418 ↗Conclusion: Vitamins and carotenoids also emerged as potential disease activity biomarkers for CD and UC, but their intake should be monitored to obtain meaningful results. These findings emphasize the involvement of oxidative stress in the pathogenesis of IBD and highlight the potential of oxidative stress-related biomarkers as a minimally invasive and additional tool for monitoring the activity of IBD.
PubMed 39368456 ↗Conclusion: Current evidence of the skin whitening effect of glutathione is still inconclusive due to the quality of included studies and inconsistent findings. However, there is a trend that glutathione might brighten skin color at skin-exposed area.
PubMed 30895708 ↗As stated by users — not a recommendation. Follow the label or your doctor.
How often each side effect came up across all reports.
Verbatim quotes, shortened only — each links to the original discussion.
“Glutathione - DIY nasal delivery attempt - Initial success and innovation ideas”
“You can try glutathione orally, but look for liposomal formula else your body will not absorb it”
“maybe the quality is great but I didn't get any feeling from his glutathione, for example.”
“have a freezer full of my future stacks (mots/ss31/nad, Epitalon/thymalin, Thymasin alpha 1/glutathione).”
“Let me get you some NAD+ and glutathione for you.”
User data from public discussions; research from PubMed. Information only, not medical advice — talk to a doctor before starting, stopping or combining anything. Data updated October 2, 2026. How we rate