One small study with amino acid supplements, including L-glutamate (which converts to glutathione in the body), showed improved skin hydration and elasticity
Science 301 , 17201725 (2003)
Additionally, Dihexa (8mg) has been utilized in research exploring its effects on long-term memory formation and synaptic signaling
For telogen effluvium specifically, this is EXACTLY what you need
This conversion occurs through 5-reductase activity in hair follicles, creating localised hormonal environments that miniaturise follicles in genetically susceptible individuals
This method of administration is particularly appealing for America research focused on its potential neuroprotective and cognitive effects, as it may offer direct access to the central nervous system through the nasal passages