BACKGROUND: The choroid plexus epithelium (CPE) is a lobed neuro-epithelial structure that forms the outer blood-brain barrier. The CPE protrudes into the brain ventricles and produces the cerebrospinal fluid (CSF). which is crucial for brain homeostasis. Malfunction of the CPE is possibly implicated in disorders like Alzheimer disease. https://jalyttlers.shop/product-category/wax-melts/