Abdul RK, Ibrahim K, Wong J, Mohd RN
Active dermatologic disease, broken or infected skin at the application site (eczema, psoriasis, infection) also a trial exclusion
5-Oxoproline is converted to glutamate by the ATP-requiring enzyme 5-oxoprolinase
Sample retains were taken at various time points post-infection and stored at 70C until analysis
2017 Cell study used 5 mg/kg intraperitoneal injection three times per week in aged mice, with treatment periods of several weeks the three-times-weekly dosing suggests the peptide maintains sufficient functional concentrations for at least 48-72 hours per dose (PMID: 28340339)
Others may associate glutathione with injectable treatments that sometimes involve steroids or other compounds, which can independently affect body weight