The ingredients (vitamins B6, B9, folate, B12, caffeine, & Phosphatidylserine) in this supplement do help brain function. I'm not hawking this just adding another opinion.

https://www.webmd.com/vitamins-and-supplements/phosphatidylserine-uses-and-risks
https://www.mayoclinic.org/diseases-conditions/alzheimers-disease/expert-answers/phosphatidylserine/faq-20057764
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4772032/