is l carnitine safe to take daily Metagenics L-Carnitine - Amino Acid Supplement for Fat Metabolism & Energy Support* - 500 mg L-Carnitine L-Tartrate - Non-GMO, Gluten-Free, Vegetarian L-Carnitine: Does It Really Help

Maybe your HPA system undergoes changes over time and this contributes to your symptoms

Theres also glutathione recycling

Haran G

(2013) Brain Glucose-6-phosphate Dehydrogenase Protects against Endogenous Oxidative DNA Damage and Neurodegeneration in Aged Mice

Ann Vasc Dis

While cytosol, peroxisomes, mitochondria, and plastids in Arabidopsis wild-type plants maintain a highly reduced glutathione buffer with redox potentials of less than 310 mV, the ER is far less reducing with E GSH values of less than 240 mV (Meyer et al., E GSH with high specificity due to selective mediation of thiol/disulfide exchange reaction between glutathione and roGFP by GRXs (Meyer et al., E GSH is outside the measuring range of these probes thus limiting their usability