PeptideTreatments
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Glutathione Injectable: Research & Evidence

Emerging Evidence

Published research, clinical trial data, and evidence grading for Glutathione Injectable across studied indications.

Back to Glutathione Injectable overview

Research Summary

Injectable glutathione has approximately 30-40 human RCTs across indications totaling around 2,000 subjects, but evidence is variable and inconsistent. A 2021 meta-analysis of 10 skin lightening RCTs showed modest effect with high heterogeneity. Evidence for chemotherapy support and male infertility is limited to small trials. Optimal dosing is not established, and the theoretical concern of endogenous production suppression with chronic use remains unresolved.

Evidence by Indication (4 indications)

Indication Tier Trials Summary
Skin lightening Tier C 10 Modest effect with high heterogeneity across studies
Chemotherapy toxicity reduction Tier C 5 Small trials suggest benefit; inconsistent methodology
Male infertility Tier C 2 Limited evidence for sperm motility improvement
Parkinson's disease Tier D 1 RCT showed no significant benefit

Graded using our evidence tier methodology.

Research Gap Score /10

Higher score = larger gap between therapeutic potential and available clinical evidence.

Citations (3 sources)

  1. 1. N-Acetylcysteine and glutathione in cancer therapy Review

    Atkuri KR, et al. (2007), Free Radical Biology and Medicine

  2. 2. Glutathione supplementation and melanin reduction Study

    Ritch CR, et al. (2016), Journal of Cosmetic Dermatology

  3. 3. Glutathione supplementation and male infertility Study

    Kumar P, et al. (2020), Andrologia