People mainly take Oral Glutathione for skin & hair. Based on 4 first-hand reports and 4 meta-analyses & systematic reviews in the medical literature. Ranked #3132 of 4,149 overall.
Of reports that state an outcome, 0% 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.
At least one meta-analysis, or 5+ randomized controlled trials. 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: GSH plays a pivotal role in cutaneous aging and tissue repair through redox regulation, mitochondrial protection, and the modulation of inflammatory and extracellular matrix pathways. To elucidate the clinical significance of glutathione, future research should focus on conducting randomized controlled trials, developing standardized formulations, and performing long-term safety assessments.
PubMed 41900080 ↗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 ↗Conclusion: There appears to be conflicting evidence regarding the clinical effectiveness of antioxidant supplementation in cystic fibrosis. Based on the available evidence, glutathione (administered either orally or by inhalation) appears to improve lung function in some cases and decrease oxidative stress; however, due to the very intensive antibiotic treatment and other treatments that cystic fibrosis patients receive, the beneficial effect of antioxidants is very difficult to assess in patients with chronic infection without a very large population sample and a long-term (at least six months) study pe
PubMed 25102015 ↗As stated by users — not a recommendation. Follow the label or your doctor.
How often each side effect came up across all reports.
First-hand experiences, quoted verbatim. We show one positive and one negative where both exist.
“Before that, I was taking oral Glutathione, which did nothing really.”
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 3, 2026. How we rate