l carnitine syrup uses L-Carnitine Liquid: Benefits, Dosage and How to Use – Biotell L - CARNITINE 300 MG

If the serum is well packed in an opaque bottle, you can keep it at room temperature as it is already pretty safe from the sunlight

Effects depend on the supplement, dose, underlying physiology, and concurrent treatments

G.ChanK.-M

Male rats with PTSD-like behaviors showed elevated p -cresol (a neurotoxic metabolite linked to overgrowth of Ruminococcaceae and Lachnospiraceae ) in prefrontal cortex, leading to dopaminergic dysfunction with increased DA, increased dopamine metabolite 3,4-dihydroxyphenylacetic acid (DOPAC), and significantly elevated DA D3 receptor expression compared to controls (Laudani et al., 2023)