glutathione injection for fair skin Side Effects — Risks & Safety (2026) Glutathione for Injection - Farbe

[DOI] [PMC free article] [PubMed] [Google Scholar] 157.Foley E.D.B., Kushwah M.S., Young G., Kukura P

However, long-term NNMT inhibition in humans hasn't been characterized beyond small pilot cohorts, so concerns about sustained NAD+ elevation (which could theoretically promote certain cancers via PARP or SIRT activation) remain speculative but unresolved

Without proper standardization, significant variability in chemical composition can occur, leading to inconsistent therapeutic outcomes and increased risk of adverse effects (74)

DSouza AA, Devarajan PV

Bioavailability and pharmacokinetics of genistein: mechanistic studies on its ADME